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(IAAC) Obj: M53 - Inst: 10-inch, f/4.5, Dobsonian; MEAD
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Observation Poster: Mitchell Diers <deltacassopeiae@hotmail.com>
Observer: Mitchell Diers
Your skills: Intermediate (some years)
Date/time of observation: April 6, 2002/21:00 PST
Location of site: Turlock, CA (Lat 120deg.50min, Elev 167 ft.)
Site classification: Urban
Sky darkness: 6 <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; MEAD
Magnification: 44x, 44x with 2x barrlow, 118x with 2x barrlow
Filter(s): None
Object(s): M53
Category: Globular cluster.
Class: Rich, many stars
Constellation: Coma Berenices
Data: mag 7.6 size 12'
Position: RA 13:12.9 DEC +18:10
Description:
44x: Useing iverted vision it looks grainy when I can make out some of the brightest individual stars. It gets brighter toward the center.
44x with 2x barrlow lens: See a few individual stars with direct vision.
118x with 2x barrlow lens: See patterns in the cluster. Stars lineing up and curving with averted vision.
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