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(IAAC) Obj: IC 3686 - Inst: 20" f/5 Tectron dobsonian



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Observer: Lew Gramer
Your skills: Intermediate (some years)
Date/time of observation: 1998-01-01/02 10:20 UT
Location of site: Deerfield, OH, USA (Lat 41N, Elev )
Site classification: Rural
Sky darkness: 6.8 (cirrus) <Limiting magnitude>
Seeing: 7 <1-10 Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 20" f/5 Tectron dobsonian
Magnification: 210x
Filter(s): None
Object(s): IC 3686
Category: External galaxy
Class: ?
Constellation: Vir
Data: mag 16p  size 1.5'
Position: RA 12:43  DEC +10:34
Description:
The last galaxy in the "trio of fainties" in my Virgo Cluster
Barnstorm this night (see preceding logs for i3647 and i3638)
was tough, but eventually showed some detail. I began from '38
by first swinging back to 27 Vir. From there, I continued on E
another 20', to a mag. 10 star in a near-empty high-power field
(210x, 23'). Concentrating on the area about 5' N of this star,
i3686 became visible to averted vision after a brief pause. It
seemed elongated SE-NW as far as I could tell, and had a barely
perceived brighter concentration near the center. This possible
core was almost symmetrical in the elongated halo of '86, but I
got the impression that it was not quite in the center: viewing
the Sky Survey image of this area later, I confirmed that i3686
is in fact an irregular little spindle, with an off-axis core!
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