(IAAC) Obj: NGC 6644 - Inst: 120mm f/8.3 refractor
anonymous at sedna.atmob.org
anonymous at sedna.atmob.org
Tue Jul 19 13:01:11 EDT 2005
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Observation Poster: Diego González <digonzalz at gmail.com>
Observer: Diego González
Your skills: Intermediate (some years)
Date/time of observation: 13-Jul-2005 0:34 UT
Location of site: Asturias, Spain (Lat 43º N, Elev 300m)
Site classification: Suburban
Sky darkness: 5.1 <Limiting magnitude>
Seeing: 6 <1-10 Seeing Scale (10 best)>
Moon presence: Minor - crescent or far from object
Instrument: 120mm f/8.3 refractor
Magnification: 31x, 50x, 80x, 100x, 167x
Filter(s): Astronomik UHC
Object(s): NGC 6644
Category: Planetary nebula.
Class:
Constellation: Sgr
Data: mag 10.7 size 3"
Position: RA 18:33 DEC -25:08
Description:
Located to the east of Lambda Sgr, forming a tiangle with two 9th magnitude stars.
It is starlike at all magnifications, and is necessary to use the UHC to identify
it: the nebula is the "star" that does not diminish brightness.
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