(IAAC) OBJ: NGC 1491 (emission or reflection) INST: 16" f/4.59

Observer:  Todd Gross
Your skill:  Intermediate 
Date and UT of observation: 11/5/97 0745 GMT
Location & latitude: 22 miles west of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): 5.2 (estimated) 5.2 (est) in vicinity of object
Seeing (1 to 10 - worst-best):  8 
Moon up (phase?): No
Weather: Clear
Instrument: 16" Newtonian-dob w. 96/99% coatings f/4.59
Magnifications: 124x, 236x
Filters used: UHC at times
Object: NGC 1491
Object data: Emission or reflection nebula
Personal "rating" (at this aperture):  B

This is a very nice irregular shaped nebula that is parked just 
west of a medium bright star. It is a mid-size glow, longer-than-wide,
and somewhat kidney bean shaped. It has a bit of a long bite 
taken out of it's back where it sits up against the star, 
but is otherwise somewhat crescent shaped, with the empty 
bowl facing to the west, away from the star, and it's back, 
the curved portion facing it.

The UHC filter helped a huge amount on this object, and lower power
(124x) was ideal for this object, 236x was a bit too much

- Todd
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Email: toddg@weatherman.com    Work Phone# (617)725-0777