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(IAAC) Obj: NGC 3147 - Inst: 16" Newtonian, f/4.45, truss-dob



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Observation Poster: Don Clouse <dlcdeepsky@insightbb.com>
Observer: Don Clouse
Your skills: Intermediate (some years)
Date/time of observation: June 21, 2003, 1:40am EDT
Location of site: south central IN, USA (Lat 38d 16m, Elev 785 ft.)
Site classification: Rural
Sky darkness: 7 <1-10 Scale (10 best)>
Seeing: 6 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 16" Newtonian, f/4.45, truss-dob
Magnification: 145x
Filter(s): none
Object(s): NGC 3147
Category: External galaxy.
Class: SA(rs)bc
Constellation: UMa
Data: mag 11.4 (B)  size 3.9'x3.4'
Position: RA 10:17  DEC +73:24
Description:
At 145x (12.5mm Ultima, 21' true field) NGC 3147 appears nearly circular with
a promient, non-stellar core.  A 2' haze surrounds the central core area.  An
extremely faint outer area adds another 1' of diameter.  Total size is about
3'x3'.
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