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DescriptionA mysterious hermit.jpg |
English: The drizzle of stars scattered across this image forms a galaxy known as UGC 4879. UGC 4879 is an irregular dwarf galaxy — as the name suggests, galaxies of this type are a little smaller and messier than their cosmic cousins, lacking the majestic swirl of a spiral or the coherence of an elliptical.
This galaxy is also very isolated. There are about 2.3 million light years between UGC 4879 and its closest neighbour, Leo A, which is about the same distance as that between the Andromeda Galaxy and the Milky Way. This galaxy’s isolation means that it has not interacted with any surrounding galaxies, making it an ideal laboratory for studying star formation uncomplicated by interactions with other galaxies. Studies of UGC 4879 have revealed a significant amount of star formation in the first 4-billion-years after the Big Bang, followed by a strange nine-billion-year lull in star formation, ended 1-billion-years ago by a more recent reignition. The reason for this behaviour, however, remains mysterious, and the solitary galaxy continues to provide ample study material for astronomers looking to understand the complex mysteries of starbirth throughout the Universe. |
Date | |
Source | http://www.spacetelescope.org/images/potw1623a/ |
Author | NASA & ESA |
![]() ![]() |
ESA/Hubble images, videos and web texts are released by the
ESA under the
Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the
ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the
{{PD-Hubble}} tag.
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Notes:
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 08:38, 8 June 2016 |
![]() | 1,280 × 952 (387 KB) | Jmencisom | User created page with UploadWizard |
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This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
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Credit/Provider | NASA & ESA |
---|---|
Source | ESA/Hubble |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 6 June 2016 |
Keywords | UGC 4879 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |
Original file (1,280 × 952 pixels, file size: 387 KB, MIME type: image/jpeg)
![]() | This is a file from the
Wikimedia Commons. Information from its
description page there is shown below. Commons is a freely licensed media file repository. You can help. |
DescriptionA mysterious hermit.jpg |
English: The drizzle of stars scattered across this image forms a galaxy known as UGC 4879. UGC 4879 is an irregular dwarf galaxy — as the name suggests, galaxies of this type are a little smaller and messier than their cosmic cousins, lacking the majestic swirl of a spiral or the coherence of an elliptical.
This galaxy is also very isolated. There are about 2.3 million light years between UGC 4879 and its closest neighbour, Leo A, which is about the same distance as that between the Andromeda Galaxy and the Milky Way. This galaxy’s isolation means that it has not interacted with any surrounding galaxies, making it an ideal laboratory for studying star formation uncomplicated by interactions with other galaxies. Studies of UGC 4879 have revealed a significant amount of star formation in the first 4-billion-years after the Big Bang, followed by a strange nine-billion-year lull in star formation, ended 1-billion-years ago by a more recent reignition. The reason for this behaviour, however, remains mysterious, and the solitary galaxy continues to provide ample study material for astronomers looking to understand the complex mysteries of starbirth throughout the Universe. |
Date | |
Source | http://www.spacetelescope.org/images/potw1623a/ |
Author | NASA & ESA |
![]() ![]() |
ESA/Hubble images, videos and web texts are released by the
ESA under the
Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the
ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the
{{PD-Hubble}} tag.
Conditions:
Notes:
|
![]() |
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 08:38, 8 June 2016 |
![]() | 1,280 × 952 (387 KB) | Jmencisom | User created page with UploadWizard |
The following other wikis use this file:
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Credit/Provider | NASA & ESA |
---|---|
Source | ESA/Hubble |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 6 June 2016 |
Keywords | UGC 4879 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |