File:A Cosmic Hit and Run.jpg

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DescriptionA Cosmic Hit and Run.jpg	English: This Picture of the Week shows the Vela ring galaxy, visible as a bright core surrounded by a baby blue halo. As the name suggests, this ring galaxy — located in the southern constellation of Vela (The Sails) — is notable due to its compact core and large circular belt of gas and stars. It is thought that ring galaxies like this are created when larger galaxies are punctured by a smaller galactic aggressor, which, passing through the heart of its more sizeable victim, triggers a shock wave that spreads outwards. This pushes gas to the galaxy’s periphery, where it begins to collapse and form new stars. The Vela ring galaxy is unusual in that it actually exhibits at least two rings, suggesting that the collision was not a recent one. This picture also features a galaxy known as ESO 316-33, seen just above and to the left of the Vela ring galaxy, and a bright star known as HD 88170.
Date	9 May 2016, 06:00:00
Source	http://www.eso.org/public/images/potw1619a/
Author	ESO Acknowledgements: Jean-Christophe Lambry

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	Date/Time	Dimensions	User	Comment
current	03:51, 14 February 2024	2,032 × 2,032 (1.24 MB)	C messier	full size

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Ring galaxy

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Image title	This Picture of the Week shows the Vela ring galaxy, visible as a bright core surrounded by a baby blue halo. This ring galaxy— located in the southern constellation of Antlia (The Pump) — is notable due to its compact core and large circular belt of gas and stars. It is thought that ring galaxies like this are created when larger galaxies are punctured by a smaller galactic aggressor, which, passing through the heartof its more sizeable victim, triggers a shock wave that spreads outwards. This pushes gas to the galaxy’s periphery, where it begins to collapse and form new stars. The Vela ring galaxy is unusual in that it actually exhibits at least two rings, suggesting that the collision was not a recent one.This picture also features a galaxy known as ESO 316-33, seen just above and to the left of the Vela ring galaxy, and a bright star known as HD 88170.
Date and time of data generation	06:00, 9 May 2016
Credit/Provider	ESO. Acknowledgements: Jean-Christophe Lambry
Source	European Southern Observatory
Short title	A cosmic hit and run
Keywords	ESO 316-33 HD 88170 VELA RING Galaxy
Contact information	http://www.eso.org Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
Usage terms	Creative Commons Attribution 4.0 International License
IIM version	4
JPEG file comment	This Picture of the Week shows the Vela ring galaxy, visible as a bright core surrounded by a baby blue halo. As the name suggests, this ring galaxy — located in the southern constellation of Vela (The Sails) — is notable due to its compact core and large circular belt of gas and stars. It is thought that ring galaxies like this are created when larger galaxies are punctured by a smaller galactic aggressor, which, passing through the heart of its more sizeable victim, triggers a shock wave that spreads outwards. This pushes gas to the galaxy’s periphery, where it begins to collapse and form new stars. The Vela ring galaxy is unusual in that it actually exhibits at least two rings, suggesting that the collision was not a recent one. This picture also features a galaxy known as ESO 316-33, seen just above and to the left of the Vela ring galaxy, and a bright star known as HD 88170.

File:A Cosmic Hit and Run.jpg

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inception

9 May 2016

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