Jump to content

File:The Sagittarius dwarf galaxy in Gaia's all-sky view ESA399651.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (4,300 × 2,708 pixels, file size: 1.9 MB, MIME type: image/jpeg)

Summary

Description
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

Licensing

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license.
Attribution: ESA/Gaia/DPAC
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

19 September 2018

image/jpeg

1,996,063 byte

2,708 pixel

4,300 pixel

99641bdfe861c4854c7b36a296a1600105cc8bdd

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current13:50, 3 April 2019Thumbnail for version as of 13:50, 3 April 20194,300 × 2,708 (1.9 MB)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

The following page uses this file:

Global file usage

The following other wikis use this file:

Metadata