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Anne’s Image of the Day: Spiral Galaxy NGC 4157

22 Mar 2014, 13:25 UTC
Anne’s Image of the Day: Spiral Galaxy NGC 4157
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March 22, 2014 NGC 4157, a barred spiral galaxy in Ursa Major Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery/galaxies/ngc4157) NGC 4157 (also known as UGC 7183) is a barred spiral galaxy of some 105,000 light-years across (about the same size as our Milky Way galaxy), located about 35.6 million light-years [continue reading]

March 22, 2014
NGC 4157, a barred spiral galaxy in Ursa Major

Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona
(http://skycenter.arizona.edu/gallery/galaxies/ngc4157)
NGC 4157 (also known as UGC 7183) is a barred spiral galaxy of some 105,000 light-years across (about the same size as our Milky Way galaxy), located about 35.6 million light-years away from Earth in the northern constellation of Ursa Major (the Great Bear), while it is receding from us at approximately 774 kilometers per second. It is part of the Ursa Major North Group of galaxies.
This galaxy is seen almost edge-on and quite elongated, but it is tilted just enough to see some of the core detail with several dark dust lanes. It has a very low surface brightness and is the faintest of three neighboring galaxies in Ursa Major, including NGC 4026 and NGC 4088.
Three supernova explosions ...

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