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File:NGC 2273 galaxy.jpg

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Summary

Description
English: At first glance, the subject of this NASA/ESA Hubble Space Telescope image looks to be a simple spiral galaxy, with two pinwheeling arms emerging from a central bar of stars and material that cuts through the galactic centre. In fact, there are rings within these spiral arms, too: spirals within a spiral.

This kind of morphology is known as a multiring structure. As this description suggests, this galaxy, named NGC 2273, hosts an inner ring and two outer “pseudorings” — having so many distinct rings is rare, and makes NGC 2273 unusual. Rings are created when a galaxy’s spiral arms appear to loop around to nearly close upon one another, combined with a trick of cosmic perspective. NGC 2273’s two pseudorings are formed by two swirling sets of spiral arms coming together, and the inner ring by two arcing structures nearer to the galactic centre, which seem to connect in a similar way.

These rings are not the only unique feature of this galaxy. NGC 2273 is also a Seyfert galaxy, a galaxy with an extremely luminous core. In fact, the centre of a galaxy such as this is powered by a supermassive black hole, and can glow brightly enough to outshine an entire galaxy like the Milky Way.

Credit:

ESA/Hubble & NASA, J. Greene
Date
Source https://www.spacetelescope.org/images/potw2014a/
Author ESA/Hubble & NASA, J. Greene

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Captions

Rings Upon Rings

Items portrayed in this file

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inception

6 April 2020

media type

image/jpeg

data size

4,607,910 byte

height

3,054 pixel

width

3,924 pixel

checksum

025734aa8c3ed2160f83f099eca262760c292552

determination method or standard: SHA-1

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Date/TimeThumbnailDimensionsUserComment
current11:53, 11 July 2022Thumbnail for version as of 11:53, 11 July 20223,924 × 3,054 (4.39 MB)Don-vipfull-res
12:46, 19 May 2020Thumbnail for version as of 12:46, 19 May 20201,280 × 996 (157 KB)GaramoraUploaded a work by ESA/Hubble & NASA, J. Greene from https://www.spacetelescope.org/images/potw2014a/ with UploadWizard

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