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(IAAC) Obj: NGC 4361 - Inst: 15 inch Obsession f4,5



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Observation Poster: Armin Hermann <burmeseinn@yahoo.com>
Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 22 Feb 2004
Location of site: Sangkhlaburi, Thailand1 (Lat 15N, Elev 200m)
Site classification: Exurban
Sky darkness: 5,5 <Limiting magnitude>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15 inch Obsession f4,5
Magnification: 342x
Filter(s): none
Object(s): NGC 4361
Category: Planetary nebula.
Class: 
Constellation: Crv
Data: mag 10,9  size >50"
Position: RA :  DEC :
Description:
342x magnification shows a fairly bright central star (13,2mag) surrounded by a 
faint round disk with fading edges. The inner part (round, approx 25") of the 
nebula is brighter and fades away into the faint halo. The surface brightness 
of 4361 is quite low but it is still an easy target for the 15-inch. No other 
structure visible in the nebula. A faint star (<14mag) is visible about 1,5 N 
of the planetary.
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