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Behold: The Largest Known Spiral Galaxy

Behold: The Largest Known Spiral Galaxy | Space Images | Scoop.it
Astronomers have long known that a spectacular barred spiral galaxy named NGC 6872 is a behemoth, but by compiling data from several space- and ground-based observatories and running a few computer simulations, ...
John Shackelford's insight:

This galaxy is more than 5 times the size of our Milky Way galaxy.  Wow!

Read more: http://www.universetoday.com/99378/behold-the-largest-known-spiral-galaxy/#ixzz2I4qVCFbw

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Scooped by John Shackelford
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Space Images (via APOD: 2012 October 30) Planetary Nebula PK...

Space Images (via APOD: 2012 October 30) Planetary Nebula PK... | Space Images | Scoop.it
Planetary Nebula PK 164 +31.1 Image Credit & Copyright: Descubre Foundation, CAHA, OAUV, DSA, Vicent Peris (OAUV), Jack Harvey (SSRO), PixInsight A planetary nebula is particularly mis-named, but,...
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