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(IAAC) OBJECT: IC3568 (planetary neb) SCOPE: 16" f/4.59 Dobnewt - suburbs LM 5.1
Observer: Todd Gross
Your skill: Intermediate
Date and UT of observation: 02/07/98 09:00 GMT
Location & latitude: 22 miles west of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): 5.1 zenith 5.1 in vicinity of object
Seeing (1 to 10 - worst-best): 6
Moon up (phase?): No
Weather: Clear, snowcovered, scattered cirrus clouds
Instrument: 16" Newtonian-dob w. 96/99% coatings f/4.59 f.l. 1865
Magnifications: 267x
Filters used: none
Object: IC3568
Constellation: Virgo
Object data: planetary neb.
Size(s): 10" round
Position: RA 12:33 DEC 82:33
Magnitudes: 10.6
Personal "rating" (at this aperture, and sky condition): B-
Very small, round.. only a slight green-blue hue, hardly noticeable, making
this object seem like a slightly out of focus star until you get to high
power. Of little interest until one notices the approximately 14+
magnitude star roughly 5 arc seconds away making this appear as a
tight double star with one object a planetary nebula!
- Todd
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BOSTON TV METEOROLOGIST TODD GROSS
Weather/Astronomy Home Page: http://www.weatherman.com
Administrator, NE Weather Watcher Mail List, wxobs-sne@shore.net
Originator of the NE.WEATHER newsgroup
_________________________________
Email: toddg@weatherman.com Work Phone# (617)725-0777