(IAAC) Obj: M 2 - Inst: 8" f/10 SCT
Observer: Lew Gramer
Your skills: Intermediate
Date and UT of Observation: 1997-09-22/23, 02:30 UT
Location: Medford, MA, USA (42N)
Site classification: urban
Limiting magnitude: 5.3 (zenith), 4.5 (in S)
Seeing: 2 of 10 - very good
Moon up: no
Instrument: 8" f/10 SCT
Magnification: 80x, 170x, 340x, 500x
Filters used: None
Category: Globular cluster
Data: mag 6.5 size 13'
RA/DE: 21h34m -00o50m
Readily found in its position at the NW apex of a triangle
formed by Alpha and Beta Aqr, amid a very sparse field of
mag 10 and 11 stars. M2 was a readily visible object, seen
at all powers as a striking blob of "nebulosity" with some
irregularities ("pseudopoda") stretching 3-5' to SW and N.
However, lost as it was in the skyglow of nearby Boston,
M2 did not show so much as a stellaring, even at 500x! A
mag 10 star was involved just N of the core (PPM 709115).
All in all, pretty disappointing even in 8"... ESPECIALLY
in comparison to nearby M15 (see following log entry).