[Prev][Next][Index][Thread][Search][Objects]
(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
Constellation:
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
magnification.
- Todd
_________________________________
BOSTON TV METEOROLOGIST TODD GROSS
Weather/Astronomy Home Page: http://www.weatherman.com
Administrator, Meade User Group: mapug@shore.net & NE Weather Watcher Mail
List, wxobs-sne@shore.net
IRC Channel Operator: #Weather, #Sciastro (Undernet) // Originator
of the NE.WEATHER newsgroup
_________________________________
Email: toddg@weatherman.com Work Phone# (617)725-0777