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(IAAC) Obj: M23 (NGC 6494) - Inst: 10-inch, f/4.5, Dobsonian
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Observation Poster: Mitchell Diers <deltacassopeiae@hotmail.com>
Observer: Mitchell Diers
Your skills: Intermediate (some years)
Date/time of observation: June 11, 2002 End of Evening Astronomical Twilight and Midnight
Location of site: Turlock, CA (Lat 120deg.50min, Elev 167 ft.)
Site classification: Urban
Sky darkness: 8 <1-10 Scale (10 best)>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 10-inch, f/4.5, Dobsonian
Magnification: 44x, 118x, and 178x
Filter(s): None
Object(s): M23 (NGC 6494)
Category: Other.
Class: Galactic Star Cluster
Constellation: Sagittarius
Data: mag 7 size 25'
Position: RA 17:54 DEC 19:01
Description:
This galactic star cluster is very bright and open at 44x. There is an amazing amount of detail at low power. I can see stars forming patterns in lines and in curves. There are a lot of bright stars that stand out perfect in a low power field and many dim stars also. Don't need to use peripheral vision to see these dim stars at all. There is a bright star North-West of the cluster and is the brightest star of this cluster. This star cluster easily fits in the 44x field of view and I find it especially rewarding and impressive. If you are scanning this part of the sky you can't miss it.
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