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Old 23-03-2007, 11:00 PM
ariane
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Glenc and all

The size of the nebulosity here seems a little larger than it appears in the telescope - or for images for that matter, and is more like 4.5x3.5 arcmin. I would have loved to have seen it in the larger Dob. The colour is interesting, as the orange colour has never seemingly been reported before. I'd assume this is from the light of the bright star - but you would expect the nebulosity to be blue - as most of the light is reflection, though the inner nebulosity has been shown to be fluoresing.

There is an useful and interesting article on the internet by Andrew James on this strange nebula, which might be of interest to IIS members here. it is highly
detailed and a good read.

The web address is;
http://homepage.mac.com/andjames/IC2220.htm
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