Posts tagged by #hubble

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La storia della costante di Hubble

Nel 1929 l’astronomo statunitense Edwin Hubble si accorse che le galassie erano in allontanamento uniforme in tutte le direzioni e formulò la legge che prende il suo nome – scoperta di fatto nel 1927 da Georges Lemaître per primo, e successivamente e in maniera indipendente da Hubble. Questa legge lega la velocità con cui le galassie si allontanano alla loro distanza: tanto maggiore è la distanza, e tanto più rapidamente si allontanano. La costante di Hubble (H0) individua di fatto la rapidità con cui l’universo si espande e la sua misura precisa fornisce un identikit anagrafico del cosmo, permettendo di conoscere meglio la sua età. La scoperta di Hubble di fatto diede origine alla cosmologia moderna, e portò a nuove ipotesi da parte di Einstein sulla costante cosmologica, oggetto di studio proprio oggi.

Il valore di H0 è da tempo oggetto di controversie: intorno all’anno 2000, gli astrofisici avevano raggiunto un valore di riferimento che oscilla fra circa 65 e circa 75 chilometri al secondo per Megaparsec (unità di misura per le distanze astronomiche). Tuttavia recentemente sono stati misurati valori anche leggermente più alti e bassi di questi di riferimento. “Queste discrepanze sono difficili da spiegare con qualsiasi errore sistematico che sia finora stato valutato”, scrive in un commento su Science Tamara Davis, astrofisica australiana dell’università del Queensland. Oggi la costante di Hubble rilevata è leggermente più alta dello standard ed è pari a 82±8 chilometri al secondo per megaparsec.

Ma come è stata ottenuta la misura? I ricercatori hanno studiato la luce proveniente da galassie distanti perfettamente allineate. In questo caso avviene un fenomeno detto lente gravitazionale.

La luce proveniente dalla galassia retrostante viene deviata e deformata dalla galassia lente, che si frappone fra l’osservatore e la sorgente. Misurando diversi parametri relativi alle caratteristiche della luce e alle galassie considerate, è possibile misurare la dimensione della galassia lenta e stimare la distanza fra le due galassie. Da questa stima, infine, è possibile ottenere il valore della costante di Hubble.

#space #hubble
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La storia della costante di Hubble

Nel 1929 l’astronomo statunitense Edwin Hubble si accorse che le galassie erano in allontanamento uniforme in tutte le direzioni e formulò la legge che prende il suo nome – scoperta di fatto nel 1927 da Georges Lemaître per primo, e successivamente e in maniera indipendente da Hubble. Questa legge lega la velocità con cui le galassie si allontanano alla loro distanza: tanto maggiore è la distanza, e tanto più rapidamente si allontanano. La costante di Hubble (H0) individua di fatto la rapidità con cui l’universo si espande e la sua misura precisa fornisce un identikit anagrafico del cosmo, permettendo di conoscere meglio la sua età. La scoperta di Hubble di fatto diede origine alla cosmologia moderna, e portò a nuove ipotesi da parte di Einstein sulla costante cosmologica, oggetto di studio proprio oggi.

Il valore di H0 è da tempo oggetto di controversie: intorno all’anno 2000, gli astrofisici avevano raggiunto un valore di riferimento che oscilla fra circa 65 e circa 75 chilometri al secondo per Megaparsec (unità di misura per le distanze astronomiche). Tuttavia recentemente sono stati misurati valori anche leggermente più alti e bassi di questi di riferimento. “Queste discrepanze sono difficili da spiegare con qualsiasi errore sistematico che sia finora stato valutato”, scrive in un commento su Science Tamara Davis, astrofisica australiana dell’università del Queensland. Oggi la costante di Hubble rilevata è leggermente più alta dello standard ed è pari a 82±8 chilometri al secondo per megaparsec.

Ma come è stata ottenuta la misura? I ricercatori hanno studiato la luce proveniente da galassie distanti perfettamente allineate. In questo caso avviene un fenomeno detto lente gravitazionale.

La luce proveniente dalla galassia retrostante viene deviata e deformata dalla galassia lente, che si frappone fra l’osservatore e la sorgente. Misurando diversi parametri relativi alle caratteristiche della luce e alle galassie considerate, è possibile misurare la dimensione della galassia lenta e stimare la distanza fra le due galassie. Da questa stima, infine, è possibile ottenere il valore della costante di Hubble.

#space #hubble
The most accurate 3D Model of the Milky Way Galaxy with precisely measured distances. ✨ 🌌 • This video shows a 3D structure of the Milky Way based on over 2000 Cepheids stars with precisely measured distances.
• Cepheid variable stars are perfect for this task. Cepheids are young pulsating supergiants, their brightness changes in a very regular pattern with a well-defined period which may range from hours to several dozen days.
• The current knowledge about the shape of the Milky Way disk is based on various tracers (such as star counts or radio observations of gas molecules) informed by the extrapolation of structures seen in other galaxies. However, the distances to these tracers are measured indirectly and are model-dependent. The most robust method of studying the shape of the Milky Way would be to directly measure distances to a large sample of stars of a specific type, which would allow one to construct the three-dimensional map of the galaxy.
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🎥 video by J. Skowron / OGLE / Astronomical Observatory, University of Warsaw
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#astrophysics #astronomy #space #science #universe #cosmos #nasa #physics #galaxy #stars #astrophotography #hubble #earth #cosmology #spacex #milkyway #solarsystem #multiverseastronomer
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The most accurate 3D Model of the Milky Way Galaxy with precisely measured distances. ✨ 🌌 • This video shows a 3D structure of the Milky Way based on over 2000 Cepheids stars with precisely measured distances.
• Cepheid variable stars are perfect for this task. Cepheids are young pulsating supergiants, their brightness changes in a very regular pattern with a well-defined period which may range from hours to several dozen days.
• The current knowledge about the shape of the Milky Way disk is based on various tracers (such as star counts or radio observations of gas molecules) informed by the extrapolation of structures seen in other galaxies. However, the distances to these tracers are measured indirectly and are model-dependent. The most robust method of studying the shape of the Milky Way would be to directly measure distances to a large sample of stars of a specific type, which would allow one to construct the three-dimensional map of the galaxy.
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🎥 video by J. Skowron / OGLE / Astronomical Observatory, University of Warsaw
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#astrophysics #astronomy #space #science #universe #cosmos #nasa #physics #galaxy #stars #astrophotography #hubble #earth #cosmology #spacex #milkyway #solarsystem #multiverseastronomer
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Öyle sönük bir galaksi ki, anca görülebiliyor. ✨@nasahubble uzay teleskobu son olarak, 30 milyon ışık yılı uzaklıktaki bir galaksiyi görüntülemeyi başardı. UGC 695 adlı bu galakside o kadar az yıldız var ki, parlaklığı, Dünya’nın atmosferinin arka plan parlaklığından bile daha az, dolayısıyla görmesi bir hayli zor. Sağ olsun Hubble sayesinde görme şansımız oluyor. 🤩 (Kaynak: @nasa)
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[A galaxy so faint you can barely see it ✨ 
@NASAHubble Space Telescope recently caught a glimpse of a galaxy 30 million light-years away. UGC 695 has so few stars that its brightness is less than the background brightness of Earth’s atmosphere — making it difficult to observe. Thankfully, Hubble managed to take a peek for us. 
Credit: ESA/Hubble & NASA, D. Calzetti]
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#bilimania #nasa #hubble #uzayteleskobu #spacetelescope #galaksi #galaxy #kozmos #cosmos #ugc695 #ışıkyılı #lightyear #uzay #space #fotoğraf #photograph #photography #bilim #science #merak #curiosity #keşif #discovery #picoftheday #photooftheday #instapic #instaphoto
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Öyle sönük bir galaksi ki, anca görülebiliyor. ✨@nasahubble uzay teleskobu son olarak, 30 milyon ışık yılı uzaklıktaki bir galaksiyi görüntülemeyi başardı. UGC 695 adlı bu galakside o kadar az yıldız var ki, parlaklığı, Dünya’nın atmosferinin arka plan parlaklığından bile daha az, dolayısıyla görmesi bir hayli zor. Sağ olsun Hubble sayesinde görme şansımız oluyor. 🤩 (Kaynak: @nasa )
・・・
[A galaxy so faint you can barely see it ✨
@NASAHubble Space Telescope recently caught a glimpse of a galaxy 30 million light-years away. UGC 695 has so few stars that its brightness is less than the background brightness of Earth’s atmosphere — making it difficult to observe. Thankfully, Hubble managed to take a peek for us.
Credit: ESA/Hubble & NASA, D. Calzetti]
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#bilimania #nasa #hubble #uzayteleskobu #spacetelescope #galaksi #galaxy #kozmos #cosmos #ugc695 #ışıkyılı #lightyear #uzay #space #fotoğraf #photograph #photography #bilim #science #merak #curiosity #keşif #discovery #picoftheday #photooftheday #instapic #instaphoto
Many of the best-loved galaxies in the cosmos are remarkably large, close, massive, bright, or beautiful, often with an unusual or intriguing structure or history. However, it takes all kinds to make a Universe — as demonstrated by this Hubble Picture of the Week of Messier 110.⁠
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Messier 110 may not look like much, but it is a fascinating near neighbour of our home galaxy, and an unusual example of its type. It is a member of the Local Group, a gathering of galaxies comprising the Milky Way and a number of the galaxies closest to it. Specifically, Messier 110 is one of the many satellite galaxies encircling the Andromeda Galaxy, the nearest major galaxy to our own, and is classified as a dwarf elliptical galaxy, meaning that it has a smooth and almost featureless structure. ⁠
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Elliptical galaxies lack arms and notable pockets of star formation — both characteristic features of spiral galaxies. Dwarf ellipticals are quite common in groups and clusters of galaxies, and are often satellites of larger galaxies.⁠
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Image credit: @europeanspaceagency / @hubbleesa & NASA, L.Ferrarese et al.⁠
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#galaxy #messier #MilkyWay #Andromeda #stars⁠
#cosmos #universe #astronomy #science #space #NASA #ESA #Hubble #Space #Telescope⁠
#photogram #spaceisbeautiful #neverstopexploring #instaspace
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Many of the best-loved galaxies in the cosmos are remarkably large, close, massive, bright, or beautiful, often with an unusual or intriguing structure or history. However, it takes all kinds to make a Universe — as demonstrated by this Hubble Picture of the Week of Messier 110.⁠

Messier 110 may not look like much, but it is a fascinating near neighbour of our home galaxy, and an unusual example of its type. It is a member of the Local Group, a gathering of galaxies comprising the Milky Way and a number of the galaxies closest to it. Specifically, Messier 110 is one of the many satellite galaxies encircling the Andromeda Galaxy, the nearest major galaxy to our own, and is classified as a dwarf elliptical galaxy, meaning that it has a smooth and almost featureless structure. ⁠

Elliptical galaxies lack arms and notable pockets of star formation — both characteristic features of spiral galaxies. Dwarf ellipticals are quite common in groups and clusters of galaxies, and are often satellites of larger galaxies.⁠

Image credit: @europeanspaceagency / @hubbleesa & NASA, L.Ferrarese et al.⁠
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#galaxy #messier #MilkyWay #Andromeda #stars⁠
#cosmos #universe #astronomy #science #space #NASA #ESA #Hubble #Space #Telescope⁠
#photogram #spaceisbeautiful #neverstopexploring #instaspace
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Wolf Cave-Kurt Mağarası... Kataloglarda VdB 152 ve Ced 201 adlarıyla bulunan gizemli mavi yansıma nebulası gerçekten de çok zayıf. 
Kurt Mağarası olarak da adlandırılan tozlu bir komplekste, uzun karanlık nebula Barnard 175’in ucunda yer alıyor. Bu derin ve geniş alan teleskobik görüntünün merkezindeki kozmik görüntüler, takımyıldız Kral’da (Cepheus), kuzey Samanyolu’nda neredeyse 1400 ışık yılı mesafededir. 
Telif: Charlie Bracken, Mladen Dugec, Max Whitby.
Kaynak: sciencelogist
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#astronomy #space #nasa #universe #stars #galaxy #astrophotography #cosmos #astrophysics #moon #earth #hubble #physics #telescope #nightsky #nature #milkyway #nebula #photography #spacex #technology #blackholes #instagram #spacex #solarsystm #astrocihangir
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Wolf Cave-Kurt Mağarası... Kataloglarda VdB 152 ve Ced 201 adlarıyla bulunan gizemli mavi yansıma nebulası gerçekten de çok zayıf.
Kurt Mağarası olarak da adlandırılan tozlu bir komplekste, uzun karanlık nebula Barnard 175’in ucunda yer alıyor. Bu derin ve geniş alan teleskobik görüntünün merkezindeki kozmik görüntüler, takımyıldız Kral’da (Cepheus), kuzey Samanyolu’nda neredeyse 1400 ışık yılı mesafededir.
Telif: Charlie Bracken, Mladen Dugec, Max Whitby.
Kaynak: sciencelogist
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#astronomy #space #nasa #universe #stars #galaxy #astrophotography #cosmos #astrophysics #moon #earth #hubble #physics #telescope #nightsky #nature #milkyway #nebula #photography #spacex #technology #blackholes #instagram #spacex #solarsystm #astrocihangir
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I answer your question☝️
"Does astrophysics have an understanding of what neutron stars and white dwarfs will become after cooling?" ☀️
White dwarfs are formed during the death of medium and large stars. The star discards the outer layers of matter and the bare core remains, which is called the white dwarf. Depending on the mass of the original star, it may consist of helium, oxygen, iron, or other chemical elements. In the white dwarf, thermonuclear fusion reactions do not occur and it glows due to heat reserves, cooling slowly. The average temperature in space is 2.7 degrees Kelvin (-270 Celsius), to cool a white dwarf to such a temperature it will take trillions of years, which is much more than the age of the Universe, so we can’t observe them yet. In theory, they should turn into black dwarfs (an unpopular term in science) - objects similar to planets. Black dwarfs should be a giant piece of metallized substance, in properties it is very similar to ordinary metals. Neutron stars are formed during the death of more massive stars than white dwarfs, their gravity is so strong that the electrons are pressed into the atomic nuclei and combine with protons to form neutrons. As a result, almost the entire star consists of neutrons and is a giant atomic nucleus. They must cool for tens of billions of years. It is believed that at a certain moment of cooling, neutron stars should be compressed into a black hole, but this issue, like neutron stars as a whole, is poorly studied.

Repost: @kosmos_no_secrets
for more updates 
Follow 👉 @scicommindia
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Follow 👉 @scicommindia 
#космос #space #galaxy #astronomy #астрономия #астрофото #hubble  #followme #мкс #наса #NASA #спутник #чёрнаядыра #вз #роскосмос #звезды #cosmos #stars #roscosmos #roscosmosofficial #земля #лайк #солнечнаясистема #большойвзрыв #milkyway #universe #наука #вселенная #spacex
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I answer your question☝️
"Does astrophysics have an understanding of what neutron stars and white dwarfs will become after cooling?" ☀️
White dwarfs are formed during the death of medium and large stars. The star discards the outer layers of matter and the bare core remains, which is called the white dwarf. Depending on the mass of the original star, it may consist of helium, oxygen, iron, or other chemical elements. In the white dwarf, thermonuclear fusion reactions do not occur and it glows due to heat reserves, cooling slowly. The average temperature in space is 2.7 degrees Kelvin (-270 Celsius), to cool a white dwarf to such a temperature it will take trillions of years, which is much more than the age of the Universe, so we can’t observe them yet. In theory, they should turn into black dwarfs (an unpopular term in science) - objects similar to planets. Black dwarfs should be a giant piece of metallized substance, in properties it is very similar to ordinary metals. Neutron stars are formed during the death of more massive stars than white dwarfs, their gravity is so strong that the electrons are pressed into the atomic nuclei and combine with protons to form neutrons. As a result, almost the entire star consists of neutrons and is a giant atomic nucleus. They must cool for tens of billions of years. It is believed that at a certain moment of cooling, neutron stars should be compressed into a black hole, but this issue, like neutron stars as a whole, is poorly studied.

Repost: @kosmos_no_secrets
for more updates
Follow 👉 @scicommindia
Follow 👉 @scicommindia
Follow 👉 @scicommindia
#космос #space #galaxy #astronomy #астрономия #астрофото #hubble  #followme  #мкс #наса #NASA #спутник #чёрнаядыра #вз #роскосмос #звезды #cosmos #stars #roscosmos #roscosmosofficial #земля #лайк #солнечнаясистема #большойвзрыв #milkyway #universe #наука #вселенная #spacex
This stunning view of M101, also known as the Pinwheel galaxy, is one of the largest images Hubble has ever captured of a spiral galaxy. Assembled from 51 exposures taken during various studies over nearly ten years, this infrared and visible-light image measures 16,000 by 12,000 pixels. Ground-based images were used to fill in the portions of the galaxy that Hubble did not observe.

The giant spiral disk of stars, dust and gas is 170,000 light-years across — nearly twice the diameter of our galaxy, the Milky Way. M101 is estimated to contain at least one trillion stars. The galaxy’s spiral arms are sprinkled with large regions of star-forming nebulas. These nebulas are areas of intense star formation within giant molecular hydrogen clouds. Brilliant, young clusters of hot, blue, newborn stars trace out the spiral arms.
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Credits: Hubble Image: NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana) and STScI; CFHT Image: Canada-France-Hawaii Telescope/J.-C. Cuillandre/Coelum; NOAO Image: G. Jacoby, B. Bohannan, M. Hanna/NOAO/AURA/NSF
#NASA #Hubble #space #science #astronomy #universe #telescope #cosmos #messier #101 #galaxy #spiral #stars
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This stunning view of M101, also known as the Pinwheel galaxy, is one of the largest images Hubble has ever captured of a spiral galaxy. Assembled from 51 exposures taken during various studies over nearly ten years, this infrared and visible-light image measures 16,000 by 12,000 pixels. Ground-based images were used to fill in the portions of the galaxy that Hubble did not observe.

The giant spiral disk of stars, dust and gas is 170,000 light-years across — nearly twice the diameter of our galaxy, the Milky Way. M101 is estimated to contain at least one trillion stars. The galaxy’s spiral arms are sprinkled with large regions of star-forming nebulas. These nebulas are areas of intense star formation within giant molecular hydrogen clouds. Brilliant, young clusters of hot, blue, newborn stars trace out the spiral arms.
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@sci_media
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Credits: Hubble Image: NASA, ESA, K. Kuntz (JHU), F. Bresolin (University of Hawaii), J. Trauger (Jet Propulsion Lab), J. Mould (NOAO), Y.-H. Chu (University of Illinois, Urbana) and STScI; CFHT Image: Canada-France-Hawaii Telescope/J.-C. Cuillandre/Coelum; NOAO Image: G. Jacoby, B. Bohannan, M. Hanna/NOAO/AURA/NSF
#NASA #Hubble #space #science #astronomy #universe #telescope #cosmos #messier #101 #galaxy #spiral #stars
Si comincia con la seconda stagione di Astro Podcast🎙
Oggi parliamo di come imparare sul nostro clima da altri mondi. Se avete domande commentate qui sotto!
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Follow for more:
@astro_filo
@astronomiainpillole
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#space #nasa #interstellar #hst #summer #galaxy #cosmos #astronomy #mars #cosmology #spacex #scienza #esa #moon #hurricanedorian #universe #planet #astrophisics #scuola #fisica #science #constellation #shuttle #satellite #hubble #astrophotography #picoftheday #astronomy #nebula #divulgers
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Si comincia con la seconda stagione di Astro Podcast🎙
Oggi parliamo di come imparare sul nostro clima da altri mondi. Se avete domande commentate qui sotto!
___________________________________________________
Follow for more:
@astro_filo
@astronomiainpillole
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#space #nasa #interstellar #hst #summer #galaxy #cosmos #astronomy #mars #cosmology #spacex #scienza #esa #moon #hurricanedorian #universe #planet #astrophisics #scuola #fisica #science #constellation #shuttle #satellite #hubble #astrophotography #picoftheday #astronomy #nebula #divulgers
Saturn is a favorite of astronomers everywhere! The second largest in our system after Jupiter, it is 9 times the size of Earth! The rings are 90% ice, extending outwards 75,000 miles and yet have an average thickness of only 65 feet!

#saturn #planet #astrophotography #astronomy #planets #universe #stars #cosmos #space #galaxy #nebula #universe #cosmos #star #astrophysics #hubble #constellation #eclipse #universetoday #nightphotography #longexposure #photooftheday #astronomer
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Saturn is a favorite of astronomers everywhere! The second largest in our system after Jupiter, it is 9 times the size of Earth! The rings are 90% ice, extending outwards 75,000 miles and yet have an average thickness of only 65 feet!

#saturn #planet #astrophotography #astronomy #planets #universe #stars #cosmos #space #galaxy #nebula #universe #cosmos #star #astrophysics #hubble #constellation #eclipse #universetoday #nightphotography #longexposure #photooftheday #astronomer
Close-up images of NGC 3242 show the cast off shroud of a dying, sun-like star fancifully known as The Ghost of Jupiter nebula. But this deep and wide telescopic view also finds the seldom seen outer halo of the beautiful planetary nebula at the upper left, toward Milky Way stars and background galaxies in the serpentine constellation Hydra. Intense and otherwise invisible ultraviolet radiation from the nebula's central white dwarf star powers its illusive glow in visible light. In fact, planets of NGC 3242's evolved white dwarf star may have contributed to the nebula's symmetric features and shape. Activity beginning in the star's red giant phase, long before it produced a planetary nebula, is likely the cause of the fainter more extensive halo. About a light-year across NGC 3242 is some 4,500 light-years away. The tenuous clouds of glowing material at the right could well be interstellar gas, by chance close enough to the NGC 3242's white dwarf to be energized by its ultraviolet radiation. 
Image Credit & Copyright: CHART32 Team, Processing - Johannes Schedler / Volker Wendel
#astronomy #earth #planets #spaceart #galaxy#nasa #cosmos #telescope #hubble #science#galaxies #spacetravel #star #stars #astronaut#universe #spacestation #astronautlife#spacetoday #spaceman #spacelovers #scifi#surrealart #quantumphysics
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Close-up images of NGC 3242 show the cast off shroud of a dying, sun-like star fancifully known as The Ghost of Jupiter nebula. But this deep and wide telescopic view also finds the seldom seen outer halo of the beautiful planetary nebula at the upper left, toward Milky Way stars and background galaxies in the serpentine constellation Hydra. Intense and otherwise invisible ultraviolet radiation from the nebula's central white dwarf star powers its illusive glow in visible light. In fact, planets of NGC 3242's evolved white dwarf star may have contributed to the nebula's symmetric features and shape. Activity beginning in the star's red giant phase, long before it produced a planetary nebula, is likely the cause of the fainter more extensive halo. About a light-year across NGC 3242 is some 4,500 light-years away. The tenuous clouds of glowing material at the right could well be interstellar gas, by chance close enough to the NGC 3242's white dwarf to be energized by its ultraviolet radiation. 
Image Credit & Copyright: CHART32 Team, Processing - Johannes Schedler / Volker Wendel
#astronomy #earth #planets #spaceart #galaxy #nasa #cosmos #telescope #hubble #science #galaxies #spacetravel #star #stars #astronaut #universe #spacestation #astronautlife #spacetoday #spaceman #spacelovers #scifi #surrealart #quantumphysics
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🧁💞⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀ ⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀#arianagrande #ari #sweetener #sweetenertour #space #nasa #thankunext #fanaccount #jupiter #juno #hubble #space #pretty #love #happy #beautiful #explorepage #vsco #vscocam #arianagrandeedit #edit #spacebuns #concert #sweetenertour #dangerouswoman #dangrouswomantour #yourstruly #notearslefttocry #idol #lyrics #quote #heart
💓⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀ ⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀#arianagrande #ari #sweetener #sweetenertour #space #nasa #thankunext #fanaccount #jupiter #juno #hubble #space #pretty #love #happy #beautiful #explorepage #vsco #vscocam #arianagrandeedit #edit #spacebuns #concert #sweetenertour #dangerouswoman #dangrouswomantour #yourstruly #notearslefttocry #idol #lyrics #quote #heart
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💓⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀⠀⠀⠀ ⠀ ⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀#arianagrande #ari #sweetener #sweetenertour #space #nasa #thankunext #fanaccount #jupiter #juno #hubble #space #pretty #love #happy #beautiful #explorepage #vsco #vscocam #arianagrandeedit #edit #spacebuns #concert #sweetenertour #dangerouswoman #dangrouswomantour #yourstruly #notearslefttocry #idol #lyrics #quote #heart
¡VÍA LÁCTEA!

Panta rhei - movimiento en la Vía Láctea

Panta rhei es una versión simplificada de las enseñanzas del famoso filósofo griego Heráclito. Básicamente significa que “todo fluye” y que todo en el Universo está continuamente en movimiento, en espiral y cambiando a través del espacio.

Algunos objetos cósmicos se mueven un poco más que otros, por ejemplo, el cúmulo globular de estrellas Palomar 12, que actualmente se encuentra en las afueras del halo de la Vía Láctea, la cual no nació en nuestra galaxia. Cuando los astrónomos estudiaron por primera vez este cúmulo, se sorprendieron por su edad, extrañamente Parecía ser un 30% más joven que otros globulares de la Vía Láctea ¿Seguramente si hubiera nacido dentro de nuestra galaxia, habría cobrado vida al mismo tiempo que sus compañeros de grupo?

Pero una investigación más profunda reveló que Palomar 12 fue arrancado de su hogar inicial, la galaxia elíptica enana de Sagitario, hace unos 1.700 millones de años a través de interacciones de marea entre su antiguo hogar y nuestra galaxia. La galaxia enana que Palomar 12 una vez llamó hogar es una galaxia satélite a la nuestra, y orbita a nuestro alrededor, incluso ocasionalmente pasando por el plano de nuestra galaxia. De hecho, la Vía Láctea lo está desgarrando y consumiendo lentamente. Vía: ESA / Hubble y NASA.

#AstronomiaEnTuBolsillo #astronomy #astronomia #NASA #ESA #Hubble #galaxy #movimiento #ViaLactea #objeto #cosmos #space #espacio #universo #cumulo #palomar #eliptica #sagitario #globular
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¡VÍA LÁCTEA!

Panta rhei - movimiento en la Vía Láctea

Panta rhei es una versión simplificada de las enseñanzas del famoso filósofo griego Heráclito. Básicamente significa que “todo fluye” y que todo en el Universo está continuamente en movimiento, en espiral y cambiando a través del espacio.

Algunos objetos cósmicos se mueven un poco más que otros, por ejemplo, el cúmulo globular de estrellas Palomar 12, que actualmente se encuentra en las afueras del halo de la Vía Láctea, la cual no nació en nuestra galaxia. Cuando los astrónomos estudiaron por primera vez este cúmulo, se sorprendieron por su edad, extrañamente Parecía ser un 30% más joven que otros globulares de la Vía Láctea ¿Seguramente si hubiera nacido dentro de nuestra galaxia, habría cobrado vida al mismo tiempo que sus compañeros de grupo?

Pero una investigación más profunda reveló que Palomar 12 fue arrancado de su hogar inicial, la galaxia elíptica enana de Sagitario, hace unos 1.700 millones de años a través de interacciones de marea entre su antiguo hogar y nuestra galaxia. La galaxia enana que Palomar 12 una vez llamó hogar es una galaxia satélite a la nuestra, y orbita a nuestro alrededor, incluso ocasionalmente pasando por el plano de nuestra galaxia. De hecho, la Vía Láctea lo está desgarrando y consumiendo lentamente. Vía: ESA / Hubble y NASA.

#AstronomiaEnTuBolsillo #astronomy #astronomia #NASA #ESA #Hubble #galaxy #movimiento #ViaLactea #objeto #cosmos #space #espacio #universo #cumulo #palomar #eliptica #sagitario #globular
Long storn system in Saturn! It was one of the largest and longest lived storms ever recorded in our Solar System. First seen in late 2010, the above cloud formation in the northern hemisphere of Saturn started larger than the Earth and soon spread completely around the planet
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#appdevsmarty #cosmos #space #universe #nasa #astronomy #science #galaxy #physics #stars #art #earth #moon #astrophysics #nature #spacex #solarsystem #milkyway #interstellar #mars #photography #planet #planets #cosmology #astrophotography #nebula #hubble #astronaut
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Long storn system in Saturn! It was one of the largest and longest lived storms ever recorded in our Solar System. First seen in late 2010, the above cloud formation in the northern hemisphere of Saturn started larger than the Earth and soon spread completely around the planet
.
#appdevsmarty #cosmos #space #universe #nasa #astronomy #science #galaxy #physics #stars #art #earth #moon #astrophysics #nature #spacex #solarsystem #milkyway #interstellar #mars #photography #planet #planets #cosmology #astrophotography #nebula #hubble #astronaut
Sunset em Porto Velho - RO em 15 de setembro de 2019.
Canon 5D, lente 70-200mm @70mm f/2.8 @8
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. 🚩CAR – Clube de Astronomia de Rondônia
👨@arieladorno
🗼 at Porto Velho - RO
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#astronomia #portovelho #rondonia #riodejaneiro #rj #sp #saopaulo #astronomy #cosmos #universo #nasa #nebulosa #hubble #astrophotography #science #space #mars #cosmos #scientist #scifi #nerd #martian #natureza #nature #night #canon #canon5d #asi120 #eclipse #lunar
31 0
Sunset em Porto Velho - RO em 15 de setembro de 2019.
Canon 5D, lente 70-200mm @70mm f/2.8 @8
.
. 🚩CAR – Clube de Astronomia de Rondônia
👨@arieladorno
🗼 at Porto Velho - RO
.
.
#astronomia #portovelho #rondonia #riodejaneiro #rj #sp #saopaulo #astronomy #cosmos #universo #nasa #nebulosa #hubble #astrophotography #science #space #mars #cosmos #scientist #scifi #nerd #martian #natureza #nature #night #canon #canon5d #asi120 #eclipse #lunar
人雖走,情都在
回憶空間中找你
在每維度裡驗證
群星中千億生死
RIP
29 2
人雖走,情都在
回憶空間中找你
在每維度裡驗證
群星中千億生死
RIP
Телескоп #Hubble сделал важное открытие — в атмосфере экзопланеты K2-18b был обнаружен водяной пар, что может означать наличие облаков и даже дождей! Открытие называют "умопомрачительным", так как вкупе с остальными параметрами планеты это делает её одним из лучших кандидатов на содержание внеземной жизни. 
Всего в 111 световых лет и мы дома... By @stern_as
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Телескоп #Hubble сделал важное открытие — в атмосфере экзопланеты K2-18b был обнаружен водяной пар, что может означать наличие облаков и даже дождей! Открытие называют "умопомрачительным", так как вкупе с остальными параметрами планеты это делает её одним из лучших кандидатов на содержание внеземной жизни.
Всего в 111 световых лет и мы дома... By @stern_as
#acrosstheuniverse #Repost @nasahubble
• • • • • •
This #HubbleClassic shows an area where stars are forming, not in our galaxy but in a nearby one known as the Small Magellanic Cloud. A brilliant star cluster called NGC 346 is swaddled in clouds of gas & dust from which the stars formed. 
For more information on Hubble, follow the link in our bio. 
Credit: NASA, ESA, and A. Nota (STScI/ESA)
#NASA #Hubble #space #science #astronomy #universe #telescope #cosmos #smallmagellaniccloud #galaxy #starcluster #star #cluster
20 0
#acrosstheuniverse #Repost @nasahubble
• • • • • •
This #HubbleClassic shows an area where stars are forming, not in our galaxy but in a nearby one known as the Small Magellanic Cloud. A brilliant star cluster called NGC 346 is swaddled in clouds of gas & dust from which the stars formed.
For more information on Hubble, follow the link in our bio.
Credit: NASA, ESA, and A. Nota (STScI/ESA)
#NASA #Hubble #space #science #astronomy #universe #telescope #cosmos #smallmagellaniccloud #galaxy #starcluster #star #cluster
Nós, literalmente, somos parte do todo.

Olha que maravilha saber que há um mundo dentro de nós.

Agora, imagina que libertador saber que somos feitos do caos.

Nós só existimos porque estrelas colapsaram.

Somos o resultado de um colapso estrelar.

Veja que legal:
#Repost @astronomy_eye (@get_repost)
・・・
“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.”
― Carl Sagan, Cosmos
.
Follow 👉 @shashastro for more 😌
. 
#carlsagan #carlsaganquotes #universe #cosmos #astrophysics #astroworld #nightphotography #photography #astronomy #astrofacts #science #nasa #galaxy #alien #moon #hubbletelescope #hubble #deepspace #spacex #nebula #milkyway #eyes #earth #moonlight #constellation #astronomy_eye
19 0
Nós, literalmente, somos parte do todo.

Olha que maravilha saber que há um mundo dentro de nós.

Agora, imagina que libertador saber que somos feitos do caos.

Nós só existimos porque estrelas colapsaram.

Somos o resultado de um colapso estrelar.

Veja que legal:
#Repost @astronomy_eye (@get_repost )
・・・
“The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.”
― Carl Sagan, Cosmos
.
Follow 👉 @shashastro for more 😌
.
#carlsagan #carlsaganquotes #universe #cosmos #astrophysics #astroworld #nightphotography #photography #astronomy #astrofacts #science #nasa #galaxy #alien #moon #hubbletelescope #hubble #deepspace #spacex #nebula #milkyway #eyes #earth #moonlight #constellation #astronomy_eye
На этой фотографии астероид Бенну, который с некой(малой) вероятностью через сто лет может врезаться в Землю. 
Даже если всё живое на этой планете погибнет, Майнкрафт всё ещё будет популярным.
28 1
На этой фотографии астероид Бенну, который с некой(малой) вероятностью через сто лет может врезаться в Землю.
Даже если всё живое на этой планете погибнет, Майнкрафт всё ещё будет популярным.
با ستاره ها جورِ دیگری باش!
آن ستارۀ ناهید
روی سخنش با مهر و ماه است.
هر ستاره ای
تنها و فقط
با من سخن می گوید.
چه حقایقی می دانم
#akdn
#Afghanistan 
#afghangirl
#afghanphysicist 
#afghanastronauts
#astronomy 
#astrophotography 
#nasa 
#cosmos 
#space 
#milkyway 
#hubble 
#astronomia 
#universe 
#galaxy 
#nightsky 
#science 
#telescope 
#universetoday 
#nebula 
#astrophysics 
#stars
#astro_photography_ 
#astronomi 
#planets 
#constellation 
Follow for more @astro_venus_
18 0
با ستاره ها جورِ دیگری باش!
آن ستارۀ ناهید
روی سخنش با مهر و ماه است.
هر ستاره ای
تنها و فقط
با من سخن می گوید.
چه حقایقی می دانم
#akdn
#Afghanistan
#afghangirl
#afghanphysicist
#afghanastronauts
#astronomy
#astrophotography
#nasa
#cosmos
#space
#milkyway
#hubble
#astronomia
#universe
#galaxy
#nightsky
#science
#telescope
#universetoday
#nebula
#astrophysics
#stars
#astro_photography_
#astronomi
#planets
#constellation
Follow for more @astro_venus_
A Long Storm System on Saturn

It was one of the largest and longest lived storms ever recorded in our Solar System. First seen in late 2010, the above cloud formation in the northern hemisphere of Saturn started larger than the Earth and soon spread completely around the planet. The storm was tracked not only from Earth but from up close by the robotic Cassini spacecraft then orbiting Saturn. Pictured here in false colored infrared in February, orange colors indicate clouds deep in the atmosphere, while light colors highlight clouds higher up. The rings of Saturn are seen nearly edge-on as the thin blue horizontal line. The warped dark bands are the shadows of the rings cast onto the cloud tops by the Sun to the upper left. A source of radio noise from lightning, the intense storm was thought to relate to seasonal changes when spring emerges in the north of Saturn. After raging for over six months, the iconic storm circled the entire planet and then tried to absorb its own tail -- which surprisingly caused it to fade away.

Image Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
#nasa #esa #iss #hubble #telescope #hubbletelescope #space #astronomy #cosmology #cosmos #physics #astrophysics #science #astronomer #astrophoto #astropics #astrophotography #sky #exploration #nebula #galaxy #stars #milkyway #earth #universe #nature #galaxies #deepsky #saturn
139 0
A Long Storm System on Saturn

It was one of the largest and longest lived storms ever recorded in our Solar System. First seen in late 2010, the above cloud formation in the northern hemisphere of Saturn started larger than the Earth and soon spread completely around the planet. The storm was tracked not only from Earth but from up close by the robotic Cassini spacecraft then orbiting Saturn. Pictured here in false colored infrared in February, orange colors indicate clouds deep in the atmosphere, while light colors highlight clouds higher up. The rings of Saturn are seen nearly edge-on as the thin blue horizontal line. The warped dark bands are the shadows of the rings cast onto the cloud tops by the Sun to the upper left. A source of radio noise from lightning, the intense storm was thought to relate to seasonal changes when spring emerges in the north of Saturn. After raging for over six months, the iconic storm circled the entire planet and then tried to absorb its own tail -- which surprisingly caused it to fade away.

Image Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
#nasa #esa #iss #hubble #telescope #hubbletelescope #space #astronomy #cosmology #cosmos #physics #astrophysics #science #astronomer #astrophoto #astropics #astrophotography #sky #exploration #nebula #galaxy #stars #milkyway #earth #universe #nature #galaxies #deepsky #saturn
Imagine slow-motion fireworks that started exploding 170 years ago and are still continuing. 🎆 🎆 🎆 ⁣
⁣
This type of firework is not launched into Earth's atmosphere, but rather into space by a doomed super-massive star, called Eta Carinae. In this view from @NASAHubble Space Telescope, which includes ultraviolet light, we see the star's hot, expanding gases glowing in red, white and blue – fitting for the! ⁣⁣ What's the first thing that comes to mind when you look at this? 💬

Tag someone that needs to see this! 🏷️ Follow ➡️ @explorethegalaxy

Credits: NASA, ESA, N. Smith (University of Arizona) and J. Morse (BoldlyGo Institute)
143 1
Imagine slow-motion fireworks that started exploding 170 years ago and are still continuing. 🎆 🎆 🎆 ⁣

This type of firework is not launched into Earth's atmosphere, but rather into space by a doomed super-massive star, called Eta Carinae. In this view from @NASAHubble Space Telescope, which includes ultraviolet light, we see the star's hot, expanding gases glowing in red, white and blue – fitting for the! ⁣⁣ What's the first thing that comes to mind when you look at this? 💬

Tag someone that needs to see this! 🏷️ Follow ➡️ @explorethegalaxy

Credits: NASA, ESA, N. Smith (University of Arizona) and J. Morse (BoldlyGo Institute)
Relative Velocity
Physics Concept
The relative velocity of an object A with respect to another object B is the velocity that object A would appear to have to an observer situated on object B moving along with it.

Have you ever been sat in a train at a station, seen another train moving off and felt you were moving even though you were stopped at the platform? This illusion occurs because there’s no way to distinguish between motion at constant speed and being stationary – the physics work the same.

To you, sitting on the stationary train (A), or to a person on the platform the moving train (B) appears to be travelling at a velocity 𝑣 away. However, to a person on the moving train the platform and the train sitting stationary at the platform both appear to be moving in the opposite direction with the same speed, or to put it another way, with the opposite velocity. Really what we are measuring in all of these cases are the velocity relative to an observer.
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Post Credit: @jameslikesspace / imagery by @nasa / wmap @nasajpl @caltechedu
Post via - @bosplanet
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#space #universe #cosmos #astrophysics #astroworld #nightphotography #photography #astronomy #astrofacts #science #nasa #galaxy #alien #moon #astronomer #astronauts #hubbletelescope #hubble #deepspace #spacex #nebula #milkyway #eyes #earth #moonlight #constellation Via @astronomy_eye
304 9
Relative Velocity
Physics Concept
The relative velocity of an object A with respect to another object B is the velocity that object A would appear to have to an observer situated on object B moving along with it.

Have you ever been sat in a train at a station, seen another train moving off and felt you were moving even though you were stopped at the platform? This illusion occurs because there’s no way to distinguish between motion at constant speed and being stationary – the physics work the same.

To you, sitting on the stationary train (A), or to a person on the platform the moving train (B) appears to be travelling at a velocity 𝑣 away. However, to a person on the moving train the platform and the train sitting stationary at the platform both appear to be moving in the opposite direction with the same speed, or to put it another way, with the opposite velocity. Really what we are measuring in all of these cases are the velocity relative to an observer.
.
.
.

Post Credit: @jameslikesspace / imagery by @nasa / wmap @nasajpl @caltechedu
Post via - @bosplanet
.
.
#space #universe #cosmos #astrophysics #astroworld #nightphotography #photography #astronomy #astrofacts #science #nasa #galaxy #alien #moon #astronomer #astronauts #hubbletelescope #hubble #deepspace #spacex #nebula #milkyway #eyes #earth #moonlight #constellation Via @astronomy_eye
Esta imagem, tirada com o Telescópio Hubble, foca em um objeto chamado UGC 695, localizado a 30 milhões de anos-luz de distância na constelação Cetus. Uma recompensa de diversas galáxias de fundo também é visível nesta imagem.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
O UGC 695 é uma galáxia de baixo brilho da superfície (LSB). Essas galáxias são tão fracas que seu brilho é menor que o brilho da atmosfera da Terra, o que as torna difíceis de observar. Esse baixo brilho é o resultado do número relativamente pequeno de estrelas dentro deles - a maior parte da matéria normal, ou "bariônica", nessas galáxias, existe na forma de enormes nuvens de gás e poeira. As estrelas também estão distribuídas por uma área relativamente grande.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
As galáxias LSB, como as galáxias anãs, têm uma alta fração de matéria escura em relação ao número de estrelas que elas contêm. Os astrônomos ainda debatem sobre como as galáxias LSB se formaram.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
🌌 (This image, taken with the NASA/ESA Hubble Space Telescope, focuses on an object named UGC 695, which is located 30 million light-years away within the constellation Cetus. A bounty of diverse background galaxies is also visible in this image.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
UGC 695 is a low-surface-brightness (LSB) galaxy. These galaxies are so faint that their brightness is less than the background brightness of Earth’s atmosphere, which makes them tricky to observe. This low brightness is the result of the relatively small number of stars within them — most of the normal, or “baryonic,” matter in these galaxies exists in the form of huge clouds of gas and dust. The stars are also distributed over a relatively large area.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
LSB galaxies, like dwarf galaxies, have a high fraction of dark matter relative to the number of stars they contain. Astronomers still debate about how LSB galaxies formed in the first place.)
⠀⠀⠀⠀⠀⠀⠀⠀⠀
Via: NASA
27 1
Esta imagem, tirada com o Telescópio Hubble, foca em um objeto chamado UGC 695, localizado a 30 milhões de anos-luz de distância na constelação Cetus. Uma recompensa de diversas galáxias de fundo também é visível nesta imagem.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
O UGC 695 é uma galáxia de baixo brilho da superfície (LSB). Essas galáxias são tão fracas que seu brilho é menor que o brilho da atmosfera da Terra, o que as torna difíceis de observar. Esse baixo brilho é o resultado do número relativamente pequeno de estrelas dentro deles - a maior parte da matéria normal, ou "bariônica", nessas galáxias, existe na forma de enormes nuvens de gás e poeira. As estrelas também estão distribuídas por uma área relativamente grande.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
As galáxias LSB, como as galáxias anãs, têm uma alta fração de matéria escura em relação ao número de estrelas que elas contêm. Os astrônomos ainda debatem sobre como as galáxias LSB se formaram.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
🌌 (This image, taken with the NASA/ESA Hubble Space Telescope, focuses on an object named UGC 695, which is located 30 million light-years away within the constellation Cetus. A bounty of diverse background galaxies is also visible in this image.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
UGC 695 is a low-surface-brightness (LSB) galaxy. These galaxies are so faint that their brightness is less than the background brightness of Earth’s atmosphere, which makes them tricky to observe. This low brightness is the result of the relatively small number of stars within them — most of the normal, or “baryonic,” matter in these galaxies exists in the form of huge clouds of gas and dust. The stars are also distributed over a relatively large area.
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LSB galaxies, like dwarf galaxies, have a high fraction of dark matter relative to the number of stars they contain. Astronomers still debate about how LSB galaxies formed in the first place.)
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Via: NASA
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#astronaut #space #nasa #astronomy #universe #cosmos #galaxy #moon #art #science #astrophotography #stars #earth #astrophysics #spacex #milkyway #astronomia #planets #astrophoto #astronomer #exploration #longexposure #ig #cosmology #milkywaychasers #hubbletelescope #educate #astrography #hubble #Plotagraph
The International Space Station is an orbiting laboratory and construction site that synthesizes the scientific expertise of 16 nations to maintain a permanent human outpost in space. While floating some 240 miles (390 kilometers) above Earth's surface, the space station has hosted a rotating international crew since November 2000. Astronauts and supplies are ferried by the U.S. space shuttles and the Russian Soyuz and Progress spacecraft. Astronauts who reach the facility aboard one of these missions typically live and work in orbit for about six months.

Simply by spending time in orbit, astronauts reveal much more about how humans can live and work in space. Crews have learned the difficulties of diet, in a world in which their sense of taste is decreased, and of getting a good night's sleep while secured to a non-floating object.

But the crew is also occupied with a full suite of scientific experiments, the on, going improvement and construction of the station, and a rigorous regime of physical training. Astronauts must exercise for two hours each day to counteract the detrimental effects of low gravity on the body's skeleton and circulatory system.
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#astrophotography #hubble #earth #cosmology#spacex #milkyway #solarsystem #telescope#interstellar #moon #iss#spacestation#blackhole #scientist #planets#sky #photography #astro #sun #astronaut#quantumphysics#astrofreak
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The International Space Station is an orbiting laboratory and construction site that synthesizes the scientific expertise of 16 nations to maintain a permanent human outpost in space. While floating some 240 miles (390 kilometers) above Earth's surface, the space station has hosted a rotating international crew since November 2000. Astronauts and supplies are ferried by the U.S. space shuttles and the Russian Soyuz and Progress spacecraft. Astronauts who reach the facility aboard one of these missions typically live and work in orbit for about six months.

Simply by spending time in orbit, astronauts reveal much more about how humans can live and work in space. Crews have learned the difficulties of diet, in a world in which their sense of taste is decreased, and of getting a good night's sleep while secured to a non-floating object.

But the crew is also occupied with a full suite of scientific experiments, the on, going improvement and construction of the station, and a rigorous regime of physical training. Astronauts must exercise for two hours each day to counteract the detrimental effects of low gravity on the body's skeleton and circulatory system.
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#astrophotography  #hubble  #earth  #cosmology #spacex  #milkyway  #solarsystem  #telescope #interstellar  #moon  #iss #spacestation #blackhole  #scientist  #planets #sky  #photography  #astro  #sun  #astronaut #quantumphysics #astrofreak

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