M3 and NGC 4631 on June 3, 2004
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/M3_2004-Jun-03.jpg",580,540,"external"))
M3 on June 3, 2004. Prime focus, IR blocking filter.
This is one of the most-studied of globular clusters, containing the largest number
of RR Lyrae stars of any known cluster. It is roughly 10 kpc distant and was
formed about 11 Gyr ago.
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/NGC4631_2004-Jun-03.jpg",612,559,"external"))
NGC 4631.
Prime focus, IR blocking filter.
This is an edge-on spiral that has been distorted due to interaction with the
nearby elliptical, NGC 4627.
2004 Jun 03 09:45 |
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