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(IAAC) Obj: NGC 7331 - Inst: TV-102 (102mm f/8.6 APO refractor)
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Observation Poster: Ron B[ee] <ronby@home.com>
Observer: Ron B[ee]
Your skills: Beginner (< one year)
Date/time of observation: 10/13/01 12:00am
Location of site: 117h 9m W (Lat 32h 43m N, Elev 2000 ft)
Site classification: Exurban
Sky darkness: 5 <Limiting magnitude>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: TV-102 (102mm f/8.6 APO refractor)
Magnification: 22x, 30x, 60x, 110x, 220x
Filter(s): none
Object(s): NGC 7331
Category: External galaxy.
Class:
Constellation: Peg
Data: mag 9.5 size 10' x 3'
Position: RA : DEC :
Description:
Took 15 minutes to star hop. Dim smudge at 22x. Start to detect a probable
elongation at 30x and more definite at 60x. Definitely elongated with bright
core at 110x. Best view at 146x, elongated with bright core and hint of
graininess. Look even better with averted vision. There are 3 stars to the
east of the galaxy: 12.7 magnitude GSC 2743:2192 that blinked in and out, 10.3
magnitude GSC 2743:1983 and 10.8 magnitude GSC 2743:2123. At 220x, the view
was dimmer but unbelievable!! Elongation can still be detected with averted
vision and more with direct vision with bright core.
This galaxy is much dimmer than its 9.5 magnitude would suggest (some source
said it's 13.3 visual magnitude)! Wow, the TV-102 collected every photons
indeed.
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