(IAAC) Obj: M30 (NGC7099) - Inst: 17" f/15 classical Cassegrain
Observer: Dave Mitsky
Your skills: Intermediate (some years)
Date/time of observation: 10/16/98 02:20 UT
Location of site: Naylor Observatory, Lewisberry, PA (Lat 40.1, Elev 76.9)
Site classification: Exurban
Sky darkness: 5.0 <Limiting magnitude>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 17" f/15 classical Cassegrain
Magnification: 118x, 202x
Object(s): M30 (NGC7099)
Category: Globular cluster.
Class: class V
Data: mag 7.2 size 11.0'
Position: RA 21:40.4 DEC -23:11
M30 is infamous as being the final object necessary to complete a springtime
Messier Marathon. It is about 70 light years in diameter and is some 25,000
light years distant.
This fairly large and concentrated globular cluster lies in eastern Capricornus
to the east of a prominent arc of stars. It was partially resolved at 118x,
showing a bright, concentrated core. At 202x the two streamers of outlying
stars that give this globular its distinctive appearance were quite apparent.
Optional related URLs: http://www.msd.org/obs.htm
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