Sunday, August 23, 2009
Dumbell Nebula and 5 other gems
This was one of those rare Missouri summer nights when the sky is clear, no moon, cool (63F), and dry (77%), no dew, light breeze, when I could have stayed out all night. I wanted to finish up some Messier objects in the south (M72 and M73) but had to wait an hour until they came out from behind an oak tree. While I waited, I went after four gems near Cygnus that I had missed the previous summer: M27, M39, M56, and M71.M27 and 71 were both near Sagitta which was visible to my unaided eye and were easy enough to find. M27, the dumbell nebula, was visible in my 9x50 finder and nice and bright with a pinched in waist appearance. M71 had a funny little 'bug eye' asterism of 6 or 7 dim stars just to the west of it. M39 was at an awkward angle for my dob (nearly overhead) so I decided to save it for another day. M56 was a dim fuzzy patch with many stars in the field. There were two parallel linear runs of 4 and 3 stars north of M56 or at least what I thought was M56. M72 and M73 were both easy enough to find once I identified dim Capricorn. They are about midway between Jupiter's current position and Alpha Cap. I first spotted the obvious globular cluster M72. It's small and dim but definitely a globular although I was not able to resolve individual stars. M73 is just outside the FOV of my 25mm ep, in the direction of Jupiter and it's Sagitta-like asterism is hard to miss although I don't think I would have noticed it had not M72 been nearby. If I don't give it a good look, it does appear to be a bit nebulous at first glance. I finally packed it in about 11:40, satisfied with a good nights work after a weekend of hell trying to dance C1 in St. Louis.
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