(IAAC) OBJECT: M56 (globular) INST: 18" Newt. fl=1925mm, LM=5.0

Observer:  Todd Gross
Your skill:  Intermediate - Many years
Date and UT of observation: 5/13/99 08:00 GMT
Location & latitude: 22 mi. West of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): approx. 5.0 zenith, 5.0 vicinity object
Seeing (1 to 10 - worst-best): 6
Moon up (phase?): No 
Weather: Crystal Clear
Instrument: 18" f/4.2 fl=1925mm Newt 
Magnifications: Various, mainly 202x
Filters used: none
Object: M56 (globular)
Constellation: Lyra
Object data: Globular cluster
Size(s): 7.1
Magnitude: 8.3
Personal "rating" (at this aperture, and sky condition): B+

M56 is highly resolved at this 18" aperture. In fact, there is some 
grainy, rich, background core, roughly round, in the center.. but 
individual members, particularly a "snake" of stars can be seen 
looping across and out of the core. The outlying resolved 
stars come both straight out from the core, and in twisting S-shape 
strings. Almost as nice as M71 at this aperture, and as good if not 
better than a 4-6" scope's resolution of M13.


Boston Meteorologist Todd Gross

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