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(IAAC) Obj: M 107 - Inst: 15" f4,5 Obsession
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To: IAAC Observing Logs <netastrocatalog-mhonarc@visualdeepsky.org>
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Subject: (IAAC) Obj: M 107 - Inst: 15" f4,5 Obsession
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From: Website Posting <owner@visualdeepsky.org>
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Date: 12 Apr 2005 18:33:36 -0000
Observation Poster: Armin Hermann <burmeseinn@yahoo.com>
Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 11 Apr 2005
Location of site: Sangkhlaburi, Thailand (Lat 15.09 N, Elev 200)
Site classification: Exurban
Sky darkness: 5,8 <Limiting magnitude>
Seeing: 10 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15" f4,5 Obsession
Magnification: 342x
Filter(s): none
Object(s): M 107
Category: Globular cluster.
Class:
Constellation: Oph
Data: mag 8,1 size 10'
Position: RA : DEC :
Description:
The very dense 2' wide core of M107 is surrounded by a loose halo that extends at
least 8' wide. The change from core into the loose halo appears significantly
abrupt. The center does also look irregularly shaped with parts of lesser star
density. At 342x I could resolve stars right down to the center of M107.
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