ASTRO: NGC 4517, edge-on spiral galaxy in Virgo

The seeing conditions were getting poor and it was the end of the night, but
I found this galaxy in TheSky near another target. I only ended up with 7
minutes of useful data, so both the object and background are noisy. This
galaxy is worth another go in color.

This galaxy was discovered by William Herschel in 1784. His son, John
Herschel, recorded this object as a new discovery in 1828, with an error of
5 minutes in RA (west), and a description that makes it certain that he was
observing this galaxy. This re-observation became NGC 4437, but it is
identical to his father's earlier discovery which is NGC 4517. Thus this
galaxy has two entries in the New General Catalog: NGC 4437, and NGC 4517.

For more info, see: http://www.kopernik.org/images/archive/n4517.htm

George N