(IAAC) Obj: M100 - Inst: Vixen 9x63 binoculars

Observation Poster: Stéphane Meloche <stephanemeloche@videotron.ca>
Observer: Stéphane Meloche
Your skills: Intermediate (some years)
Date/time of observation: 2005/04/10 3h40 UT
Location of site: Ste-Catherine-de-Hatley, Québec, Canada (Lat 45.4542°, Elev 316 m)
Site classification: Exurban
Sky darkness: 5,2 <Limiting magnitude>
Seeing:  <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: Vixen 9x63 binoculars
Object(s): M100
Category: External galaxy.
Class: SABbc
Constellation: Com
Data: mag 9.3  size 6.2 x 5.3
Position: RA 12:23  DEC 15:49
In Coma Berenices, at ~2° NE of 6 Com. Galaxy easy to locate, all at the end of a line formed by of 6 Com, SAO 100023 and SAO 100054. M100 is visible only with averted vision. The object is very close to the zenith. It seems that the surface brightness of this object is rather low. It takes the aspect of a very weak round spot, without any other detail. However, the galaxy seems of big size.
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