(IAAC) OBJECT: NGC1931 (OC + Reflection) INST: 14.5"Newt fl=1580

Your skill:  Intermediate - Many years
Date and UT of observation: 10/22/00 07:00GMT
Location & latitude: 22 mi. West of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): approx. 5.0 zenith, 5.0 vic.object
Seeing (1 to 10 - worst-best): 4
Moon up (phase?): Yes, large crescent
Weather: Clear
Instrument: 14.5" f/4.29 fl=1580mm Newt 
Magnifications: Various from 69-264X 
Filters used: None, Deep Sky and UHC
Object: NGC1931
Constellation: Auriga
Object data: Emission
Size(s): 3'x3'
Position: 5:31 / +34:15
Magnitude: 11.3
Personal "rating" this aperture: C/C+
Dim, but quite noticeable nebulosity surrounding primarily three 
triangular placed, tightly clustered stars, not very impressive. 
Interesting to note that the deepsky filter made it harder to 
see the nebulosity, and the UHC filter all but knocked it out. 
Certainly reflection and not emission. 
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