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(IAAC) Obj: NGC 990 - 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 990 - Inst: 10.1" f/4.5 Newtonian reflector
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From: anonymous@sedna.atmob.org
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Date: 10 Jan 2006 12:24:17 -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: 01/04/06 01:55 UT
Location of site: Rolla, MO USA (Lat 37 57'N, Elev )
Site classification: Rural
Sky darkness: 7.1 <Limiting magnitude>
Seeing: <1-10 Seeing Scale (10 best)>
Moon presence: Minor - crescent or far from object
Instrument: 10.1" f/4.5 Newtonian reflector
Magnification: 77x, 128x, 257x
Filter(s): None
Object(s): NGC 990
Category: External galaxy.
Class:
Constellation: Ari
Data: mag 12.5 size 1.0' X 1.0'
Position: RA 02:36 DEC +11:38.5
Description:
A uniform round halo which shows gradual brightening to a fairly bright,
diffuse core. Located ~5' NW of a wide pair of 10th magnitude field stars
aligned NE-SW with which the galaxy forms a nearly equilateral triangle.
Visible with averted vision at 77x, it bore magnification well and was best
seen at 257x.
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