File:The_Sagittarius_dwarf_galaxy_in_Gaia's_all-sky_view_ESA399651.jpg
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Summary
DescriptionThe Sagittarius dwarf galaxy in Gaia's all-sky view ESA399651.jpg |
English: The Sagittarius dwarf galaxy, a small satellite of the Milky Way that is leaving a stream of stars behind as an effect of our Galaxy’s gravitational tug, is visible as an elongated feature below the Galactic centre and pointing in the downwards direction in the all-sky map of the density of stars observed by ESA’s Gaia mission between July 2014 to May 2016.
Scientists analysing data from Gaia’s second release have shown our Milky Way galaxy is still enduring the effects of a near collision that set millions of stars moving like ripples on a pond. The close encounter likely took place sometime in the past 300–900 million years, and the culprit could be the Sagittarius dwarf galaxy. Full story: Gaia hints at our Galaxy’s turbulent life |
Date | |
Source | http://www.esa.int/spaceinimages/Images/2018/09/The_Sagittarius_dwarf_galaxy_in_Gaia_s_all-sky_view |
Author | European Space Agency |
Permission (Reusing this file) |
ESA/Gaia/DPAC,CC BY-SA 3.0 IGO |
Title InfoField | The Sagittarius dwarf galaxy in Gaia's all-sky view |
Mission InfoField | Gaia |
Activity InfoField | Space Science |
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19 September 2018
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:50, 3 April 2019 | 4,300 × 2,708 (1.9 MB) | Fæ | European Space Agency, Id 399651, http://www.esa.int/spaceinimages/Images/2018/09/The_Sagittarius_dwarf_galaxy_in_Gaia_s_all-sky_view, User:Fæ/Project_list/ESA |
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Metadata
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Width | 4,300 px |
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Height | 2,708 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 79 dpc |
Vertical resolution | 79 dpc |
Software used | Adobe Photoshop CC 2018 (Macintosh) |
File change date and time | 13:33, 18 September 2018 |
Exif version | 2.21 |
Color space | Uncalibrated |
Unique ID of original document | E7E900CFE80F2C444E7F3B57B29787D0 |
Date and time of digitizing | 12:20, 18 September 2018 |
Date metadata was last modified | 15:33, 18 September 2018 |