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(IAAC) Obj: M57 - Ring nebula - Inst: ASM 200mm f/6 dob
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Observation Poster: Drew Smith <regansmith@earthlink.net>
Observer: Drew Smith
Your skills: Beginner (< one year)
Date/time of observation: 5/20/02 2AM MST
Location of site: Pawnee Grasslands, Weld Co, CO (Lat 40.6, Elev 5100 ft)
Site classification: Rural
Sky darkness: 6 <Limiting magnitude>
Seeing: II <I-V Seeing Scale (I best)>
Moon presence: None - moon not in sky
Instrument: ASM 200mm f/6 dob
Magnification: 42, 67, 84, 134, 170, 340
Filter(s):
Object(s): M57 - Ring nebula
Category: Planetary nebula.
Class:
Constellation: Lyra
Data: mag 9.5 size
Position: RA : DEC :
Description:
Looked ring-like, having a dark center, even at lowest magnification (42X). Best viewed at 84-134X - not enough contrast at higher mag. No color other than gray-green apparent. The ring itself was slightly filamentous.
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