Thread: comets
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Old 15-05-2009, 10:18 PM
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ngcles
The Observologist

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Join Date: Dec 2006
Location: Billimari, NSW Central West
Posts: 1,664
RCW 91b

Hi Steve, Ron & suma 126,

Quote:
Originally Posted by kinetic View Post
found your guy.....good estimate of part of your co ordinates

No hang on...an open cluster, just spotted it....called Lynga 3

Edit: Here's the weird thing though...when properly resized and
rotated, then overlaid on your image.....Lynga 3 is not your object.
So.....lens flare possibly from a nearby bright star?

A few open clusters nearby Steve
Well done Steve on identifying the field -- I think you are spot on.

After a bit of a SIMBAD search on the co-ordinates, I'm pretty certain the object in the photo is a poor image of the HII region RCW 91B

The SIMBAD page is here:

http://simbad.u-strasbg.fr/simbad/si...&submit=submit

The position is a very close match (good enough given that it is a diffuse extended object).

A wider image using Sky-Map.org is here:

http://www.sky-map.org/?ra=15.302206...mg_source=DSS2

Hope the looooong links don't break!

The two brighter stars nr bottom are Gamma and Beta Circini, the nebula is a little above centre, directly N of Beta Circini.

A nice little puzzle for a Friday night!

Comments??


Best,

Les D

Last edited by ngcles; 15-05-2009 at 11:01 PM.
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