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(IAAC) Obj: Humason 1-2 - Inst: 17.5" f/5 Truss, Dob Driver
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To: Internet Amateur Astronomers Catalog <netastrocatalog@visualdeepsky.org>
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Subject: (IAAC) Obj: Humason 1-2 - Inst: 17.5" f/5 Truss, Dob Driver
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From: anonymous@sedna.atmob.org
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Date: 9 Aug 2005 20:26:17 -0000
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cc: mva@total.net
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Delivered-To: 9-netastrocatalog-obs@visualdeepsky.org
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Observation Poster: Mark Viol <mva@total.net>
Observer: Mark Viol
Your skills: Intermediate (some years)
Date/time of observation: August 6, 2005 2:45 am EDT
Location of site: Mount Forest, Ontario (Lat , Elev )
Site classification: Rural
Sky darkness: 7 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 17.5" f/5 Truss, Dob Driver
Magnification: 427
Filter(s): OIII
Object(s): Humason 1-2
Category: Planetary nebula.
Class:
Constellation: Cygnus
Data: mag 12.7 size 8"
Position: RA 21:33 DEC 39:38
Description:
Quite bright and can take lots of magnification. A perfect hour glass shape with well-defined
edges. Slightly blue-gray in colour.
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