(IAAC) Obj: M 37 - Inst: 13" F/5.6 Bigfoot German Equatorial Mount

Observer: Steve Coe
Your skills: Advanced (many years)
Date/time of observation: Feb 25, 1995
Location of site: Sentinel, Arizona (Lat +32, Elev 1500)
Site classification: Rural
Sky darkness: 7/10 <1-10 Scale (10 best)>
Seeing: 6/10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 13" F/5.6 Bigfoot German Equatorial Mount
Magnification: 150X, 220X
Filter(s): none
Object(s): M 37
Category: Open cluster
Constellation: Aur
Data: mag   size 
Position: RA :  DEC :
This terrific cluster is easy in the 11X80 finderscope and show up as a bright
area in the Winter Milky Way that is elongated 2X1 in PA 0 degrees.  In the
13" at 150X this is a magnificent object, it is very bright, large, very
rich and compressed.  I counted 146 stars involved, many in beautiful chains
of stars that are cut by dark lanes winding through the cluster.  There is
a nice dark orange star of 10th magnitude on the north side in a dark area.
Raising the power to 220X resolves many more very faint stars, lots of pairs
included within the cluster.  The higher power also really accentuates the
dark lanes that are so prominent in this stunning cluster.
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