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(IAAC) Obj: Rigel 19 Beta Orionis - Inst: 4" Off Axis Dobsonian f10
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Observation Poster: Shane Sweeney <shane_sweeney@hotmail.com>
Observer: Shane Sweeney
Your skills: Intermediate (some years)
Date/time of observation: 01/04/03 06:15 UT
Location of site: Tahlequah, OK, USA (Lat 35 9', Elev 250M)
Site classification: Rural
Sky darkness: 7 <1-10 Scale (10 best)>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 4" Off Axis Dobsonian f10
Magnification: 30x 80x
Filter(s): None
Object(s): Rigel 19 Beta Orionis
Category: Multiple star.
Class: Double Star
Constellation: Orion
Data: mag 0.1-6.7 size
Position: RA : DEC :
Description:
Had split Rigel before but wanted to verify tonight with a friend. Was no sign
at 30x but at 80x using a Harry Seibert 12.5mm saw companion in the upper
left from Rigel in my inverted feild. Turned my helical focuser to verify it
wasn't an internal
reflection, it stayed put. Very dim at first but after getting used to what I
was looking at became obvious with direct vision. My friend is a beginner and
he saw it too. This DGM 4.0 is an impressive instrument for only $800 and is great for doubles because of lack of difraction spikes and no false color.
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