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(IAAC) OBJECT: M57(planetary) INST: 90mm refractor fl=800mm
Observer: Todd Gross
Your skill: Intermediate +
Date and UT of observation: 02/25/01 09:55am GMT
Location & latitude: 22 mi. West of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude(visual): 5.0(est) zenith 4.9 object vic.
Seeing (1 to 10 - worst-best): est. 4
Moon up (phase?): No
Weather: Clear
Instrument: 90mm Sky90 refractor w. ext = fl 800mm
Magnifications: 114-200x
Filters used: none
Object: M57
Constellation: Lyra
Object data: planetary
Size(s): 1'
Position: 18:54, 38:02
Magnitude: 8.8
Personal "rating" (at this aperture, and sky condition): B+
The ring nebula appeared strictly as a its classic elongated smoke-ring in
this scope despite the small aperture. (hole completely apparent)
The 13th magnitude star nearby the ring was
easily detected, and could almost be made out with direct vision.
No sign of the 14.2 mag. star nearby. Did not notice any sort of
greenish hue as I do in larger aperture.
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