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M13, M27, M57, and NGC 5466 on 17 June 2005
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/M13_2005-06-17.jpg",600,560,"external"))
M13. Total integration time 137×8.53 sec = 19.5 min.
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/M27_2005-06-17.jpg",595,540,"external"))
M27 (the Dumbbell Nebula). Total integration time 419×8.53 sec = 60 min.
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/M57_2005-06-17.jpg",540,480,"external"))
M57 (the Ring Nebula). Total integration time 280×8.53 sec = 40 min. The V magnitudes shown are from photometry of M57 field stars taken by Arne Hendon (USNO-Flagstaff). See Brian Skiff’s page on M57 field star photometry for more information.
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/NGC5466_2005-06-17.jpg",540,530,"external"))
NGC 5466 on June 17, 2005. Prime focus (f/8.0). Total integration time 349×8.53 sec = 50 min. This is a faint, sparse globular cluster, roughly 52,000 light years distant.
2005 Jun 17 08:21 |
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