File:Starbursts in NGC 5398 (37026285511).jpg

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Description	This NASA/ESA Hubble Space Telescope picture shows NGC 5398, a barred spiral galaxy located about 55 million light-years away. More information: <a href="https://www.spacetelescope.org/images/potw1737a/" rel="nofollow">www.spacetelescope.org/images/potw1737a/</a> Credit: ESA/Hubble & NASA
Date	3 December 2016, 11:57
Source	Starbursts in NGC 5398
Author	Hubble ESA

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This image was originally posted to Flickr by Hubble Space Telescope / ESA at https://flickr.com/photos/51268976@N08/37026285511. It was reviewed on 7 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

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current	15:37, 7 December 2020		4,000 × 1,997 (3.05 MB)	Eyes Roger (talk \| contribs)	Transferred from Flickr via #flickr2commons

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Credit/Provider	ESA/Hubble & NASA
Source	ESA/Hubble
Short title	Starbursts in NGC 5398
Image title	This NASA/ESA Hubble Space Telescope picture shows NGC 5398, a barred spiral galaxy located about 55 million light-years away. The galaxy is famous for containing an especially extensive HII region, a large cloud composed of ionised hydrogen (or HII, pronounced“H-two”, with H being the chemical symbol for hydrogen and the “II” indicating that the atoms have lost an electron to become ionised). NGC 5398’s cloud is named Tol 89 and sits at the lower left end of the galaxy’s central “bar” of stars, a structure that cuts through the galactic core and funnels material inwards to maintain the star formation occurring there. Tol 86 is conspicuous in being the only large massive star forming complex in the entire galaxy, with an extension of roughly 5000 times 4000 light-years; it contains at least seven young and massive star clusters. Thetwo brightest clumps within Tol 89, which astronomers have named simply “A” and “B”, appear to have undergone two bursts of star-forming activity — “starbursts” — roughly 4 million and less than 3 million years ago respectively. Tol 89-A is thought to contain a number of particularly bright and massive stars known as Wolf-Rayet stars, which are known for their high temperatures and extreme stellar winds.
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	06:00, 11 September 2017
Software used	Adobe Photoshop CC 2015 (Windows)
File change date and time	11:57, 3 December 2016
Date and time of digitizing	21:03, 23 October 2016
Date metadata was last modified	12:57, 3 December 2016
Unique ID of original document	xmp.did:7203107e-7577-994b-85d9-ec969c957b4d
Keywords	NGC 5398
Contact information	http://www.spacetelescope.org Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM version	4

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