(IAAC) Object: M13 - Instrument: 7x50 binos (ADDENDUM)
Observer: Lew Gramer
Your skills: Intermediate
Date and UT of Observation: 1997-2-9/10, 08:35 UT
Location: Medford, MA, USA (42N)
Site classification: urban
Limiting magnitude: 5.0 (zenith) 4.6 (near object)
Seeing: 3 - medium
Moon up: no
Instrument: 50mm binos
Filters used: None
Category: Globular cluster
Constellation: Ser (Caput)
Data: mag 5.8 size 17'
RA/Dec: 15h19m 02o05'
(ADDENDUM) Coincidentally, the true beauty of binocular
observing was pointed up in this night's observations...
I managed to do a series of 8 observations of globular
clusters in a total span of about 45 minutes, this night
and the one following, using M13 as the "yardstick" with
which to measure the apearance of the 7 other globulars
(M92, M3, M53, M5, M12, M10, M14). Not to mention three
or four globulars which I could NOT see on these nights:
M107, ngc5053, ngc6366, and ngc5897. The wide field and
portability of 7x50s make such fun rapid sweeps possible!