Re: [Utah-astronomy] last effort before full moon
I was looking hard right at the spot where NGC 147 (Caldwell 17) was with no luck, when I looked up and realized it wasn't dark anymore... Oh, well... Until August, I guess.
NGC 147 (C17) is a faint irregular satellite galaxy to M31. Planetarium software simulation indicates it will be back into a dark sky window, free of moon light washout, beginning the evening of August 6 or 7. It will still be well placed near the local zenith in the early morning hours after 1 am. Even though its catalog integrated magnitude is 10.0, Clark's _Visual Astronomy of the Night Sky_, Appendix E, lists the surface brightness of NGC 147 at 24.0 mpsas. That makes it a true dark sky site object or would require a very large aperture - possibly 12 inches or above to acquire visually. If you do not have the time to travel to a try dark sky site, I'd recommend trying to acquire it by imaging - which will give you a little more magnitude reach. Clear Skies, Kurt Appendix E to _Visual Astronomy of the Night Sky_. http://www.clarkvision.com/visastro/appendix-e.html
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Canopus56