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Old 23-06-2012, 09:08 AM
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Lester
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Emerald (planetary nebula)

Hi all, this is a very small object, but as it had a designated name I had to have a go at it and see why. It is only 0.3' in diameter, and although mag 8.1, I could only manage exposures of 5 seconds as longer overexposed the internal colour. It is in the constellation of Ophiuchus.

This is 27 exposures with 14" SCT at F10 and Astro 40D at ISO 800.
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Old 23-06-2012, 10:43 AM
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jjjnettie (Jeanette)
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what a curious little neb.
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Old 23-06-2012, 11:35 AM
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Yes JJ, similar in some ways to the White-Eyed Pea nebula but with different colouring.
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Old 23-06-2012, 01:22 PM
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Mmmmm... looks like an olive

Mike
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Old 23-06-2012, 06:15 PM
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Very interesting Lester, I had this one chalked up for 4.3 meter FL with the sensitive Mintron cctv camera but to get structure it will be tough as it is so small.

John.
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Old 23-06-2012, 06:26 PM
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Thanks Mike and John for your comments. Yes it could be an olive. John if you use filters with your camera, could be a chance to extract some more detail. All the best.
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