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Old 18-08-2016, 11:45 PM
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Maurice
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Join Date: Jun 2006
Location: Melbourne
Posts: 496
The Eagle & the full moon

Hello all,

The moral of this story is probably not to image when the moon is 99% full - even in Ha - although this one turned out ok because of good seeing.
Gradients were bad, but not as bad as the night before when the moon was about 10 degrees away from M16. One side of the image was black - the other side looked overexposed in the raw frames.

Attached is the full frame at full size of 7x1200sec exposures of the M16 region in Ha taken last night. Scope was a GSO RC14; camera a QHY9 all on an EQ8 + OAG with a ZWO120mm

The seeing varied from just under 1.5" FWHM to 1.8" FWHM in individual frames. Only processing here was calibration with darks & flats, non linear stretch, contrast enhancement and unsharp masking.

Unfortunately there is a fair bit of detail lost to compression in order to post here.

Cheers
Maurice
Attached Thumbnails
Click for full-size image (M16 sml.jpg)
154.7 KB113 views
Click for full-size image (M16 crop pillars.jpg)
92.8 KB37 views

Last edited by Maurice; 19-08-2016 at 11:12 PM. Reason: Attached 'pillars' crop
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