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Old 29-06-2015, 05:41 PM
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Geoff45 (Geoff)
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
M17, the Swan Nebula

http://www.astrobin.com/190614/

Taken at Wiruna over two new moon periods.
Telescope: 12'5" PlaneWave CDK
Camera: FLI Proline 16803
Mount: AP900
Date: May 2015, June 2015
Exposure: 3 x L, 6 x R, 6 x G, 4 x B: all 10 minutes for a total of 190 min. I actually took 290 minutes of data but discarded the ones where the FWHM was over 2.5". I also combined a synthetic luminance from the combined RGB image with the other luminance frames.
FOV: 50' x 50'
Geoff
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