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Old 08-10-2017, 02:54 PM
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Octane (Humayun)
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Join Date: Dec 2005
Location: Canberra
Posts: 11,159
The Eagle and the Swan - M16 in Serpens Cauda and M17 in Sagittarius

Hey all,

This is a real quickie of an image -- just 8.5 hours of data. It was data that I was capturing while working on other projects. Bit of a filler. As a result, the depth suffers and it's also somewhat noisy; although, I've tried to tame it as best as I can.

Atypical of most astronomical images (and, a first for me), I have chosen to present this composition in portrait orientation to help with anthropomorphism -- the eagle at top with its wings spread mid-flap swooping down towards the unassuming and unaware swan below.

I've presented this image in the CFHT pallete; hydrogen alpha mapped to red, oxygen III mapped to green and sulphur II mapped to blue. I also utilised the hydrogen alpha data as a synthetic luminance layer to help bring out the vast swathes of nebulosity, and, also to suppress the overhwelming star field.

Larger version available here.

Comments, critique, etc., most welcome.

Thanks for looking!

H
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