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(IAAC) OBJECT: M14 (globular) INST: 18" f/4.2 1925mm fl LM=5.1 zenith
Observer: Todd Gross
Your skill: Intermediate - Many years
Date and UT of observation: 3/27/99 08:35 GMT
Location & latitude: 22 mi. West of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): approx. 5.1 zenith, 4.7 vicinity object
Seeing (1 to 10 - worst-best): 6
Moon up (phase?): No gibbous, just set
Weather: Crystal Clear
Instrument: 18" f/4.2 fl=1925mm Newt
Magnifications: Various 101-275
Filters used: none
Object: NM14 (globular)
Constellation: Oph
Object data: Globular cluster
Size(s): 12'
Position: 17:37 -3:14
Magnitude: 7.6
Personal "rating" (at this aperture, and sky condition): B+
M14 looked quite nice in the 18". It was partially resolved, with
individual stars overlaying a denser, mostly unresolved core...and
tiny individuals on the outskirts too, although they were not terribly
dense.
M14 was medium size, and classic looking, with brighter stars at
3 of 4 corners, giving the globular an appearance of having a
"star-shape" or "diamond shape" overall. Good seeing conditions seem
to aid the resolution. Seemed very close to how M13 looks in a 105mm
APO. (much resolution with averted vision)
thanks!
-Todd
Boston Meteorologist Todd Gross
toddg@weatherman.com
http://www.weatherman.com
(617)725-0777
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