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(IAAC) Obj: NGC 1691 - Inst: 10.1" f/4.5 Newtonian reflector
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To: Internet Amateur Astronomers Catalog <netastrocatalog@visualdeepsky.org>
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Subject: (IAAC) Obj: NGC 1691 - Inst: 10.1" f/4.5 Newtonian reflector
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From: anonymous@sedna.atmob.org
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Date: 24 Feb 2006 23:06:40 -0500
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Delivered-To: 9-netastrocatalog-obs@visualdeepsky.org
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Observation Poster: Brent Reary <gmbreary@rollanet.org>
Observer: Brent Reary
Your skills: Intermediate (some years)
Date/time of observation: 02/23/06 02:50 UT
Location of site: Rolla, MO USA (Lat 37 57'N, Elev )
Site classification: Rural
Sky darkness: 6.5 <Limiting magnitude>
Seeing: 6-7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 10.1" f/4.5 Newtonian reflector
Magnification: 128x, 193x, 257x
Filter(s): None
Object(s): NGC 1691
Category: External galaxy.
Class:
Constellation: Ori
Data: mag 12.0 size 1.5' X 1.5'
Position: RA 04:54.5 DEC +03:16
Description:
A faint, uniform, round halo which gradually brightens to a diffuse core.
Visible with averted vision at 128x, it was best seen at 193x. A very faint
field star is located ~2' NE.
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