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This close-up of the Sloan Digital Sky Survey photo on the facing<br />
page shows the host of small galaxies that swarm around the<br />
ultram<strong>as</strong>sive elliptical galaxies NGC 4889 and 4874.<br />
NGC 4864 h<strong>as</strong> a tiny near-stellar companion, 14.3-magnitude<br />
NGC 4867, only 0.6′ southe<strong>as</strong>t, and another companion<br />
of similar magnitude, IC 3955, 2′ northwest.<br />
NGC 4865 and NGC 4860 lie northwest of the 7thmagnitude<br />
star that makes <strong>this</strong> end of our oval so hard<br />
to observe. Both galaxies show nuclei. NGC 4860 h<strong>as</strong> a<br />
minuscule companion, 15th-magnitude NGC 4858, that I<br />
could only detect intermittently — perhaps due to the fact<br />
that the seeing w<strong>as</strong> only fair on that night because the jet<br />
stream w<strong>as</strong> overhead. (This is unfortunately all too common<br />
in temperate latitudes in springtime.)<br />
There are many more Coma Cluster galaxies lurking<br />
beyond the small area that we have explored. On one foray<br />
into the cluster my 16-inch swept up a PGC galaxy that I<br />
w<strong>as</strong> not even hunting for, 14th-magnitude PGC 44467,<br />
located 10′ southwest of NGC 4860. How did such an e<strong>as</strong>y<br />
prize go unclaimed by the 19th-century observers who<br />
discovered the much tougher NGC galaxies nearby? ✦<br />
Alan Whitman looks forward to diving into the Coma<br />
Cluster with much bigger gl<strong>as</strong>s.<br />
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SkyandTelescope.com May 2012 63
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