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Astro Bob

Zoom Into The Triangulum Galaxy Like Never Before

10 Jan 2019, 18:58 UTC
Zoom Into The Triangulum Galaxy Like Never Before
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This gigantic image of the Triangulum Galaxy — also known as Messier 33 — is a composite of about 54 different pointings with Hubble’s Advanced Camera for Surveys. With a staggering size of 34,372 x 19,345 pixels, it’s the second-largest image ever released by Hubble. To really appreciate it in full detail, click here to use the zoom tool. NASA, ESA, and M. Durbin, J. Dalcanton, and B. F. Williams (University of Washington)
What’s the closest galaxy? If you answered the Milky Way, you’re right. It belongs to the Local Group, a pack of more than 50 galaxies bound together by gravity. Andromeda is the largest galaxy in the group with a diameter of 200,000 light years with the Milky Way in second place at 100,000 light years. Both are probably familiar to you. But I’d be willing to bet a fair share of people have never heard of the galaxy in that third place slot — the Triangulum Galaxy.
The Pinwheel is also a spiral galaxy like Andromeda and the Milky Way, but its arms are flocculent and loosely wound. The galaxy is the third largest in the Local Group and faintly visible with the naked eye from the ...

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