Tuesday, November 3, 2020
Sharpless 124 (Sh2-124)
I found unprocessed material from my HD! Back in January 2016 I shot data for the Sharpless object 124 in Northern Cygnus. Something must happen at the time since I never processed the data.
Sh2-124 is an emission nebula in northern Cygnus at about 8.500 light years away. It doesn’t seem to be imaged very often, and I was not able to find much additional information about it.
Sharpless 124
Click for a large image
Image is in mapped colors from an emission of the ionized elements. Golden areas are from emission of sulfur and hydrogen, S-II and H-alpha, blueish areas are from ionized oxygen, O-III.Sh2-124 in H-alpha light
Click for a large image
Technical details
Processing work flow
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics
Celestron Edge HD 1100 @ f7 with 0,7 focal reducer for Edge HD 1100 telescope
Mount
10-micron 1000
Cameras and filters
Imaging camera Apogee Alta U16 and Apogee seven slot filter wheel
Guider camera, Lodestar x2 and SXV-AOL
Astrodon filter, 5nm H-alpha
Astrodon filter, 3nm O-III
Astrodon filter, 3nm S-II
Exposure times
H-alpha, 15 x 1200s = 5h
O-III, 6 x 1200s binned 4x4 = 2h min.
S-II, 6 x 1200s binned 4x4 = 2h min.
Total 9h
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