Let there be light: and there was light.
Sh2-274 (Abell 21) - MedusaNebula
RA 07h 29m 02,7s
DE +13° 14′ 48″
Instrument:
Newtonian Astrograph, D=200mm, f=1000mm
Filter:
Astronomik IR-UV cut L2
Exposure:
420 x 60sec;
Total Integration Time:
7h 00min
Camera:
ZWO ASI 294 MC Pro
Gain:
121
Image Calibration:
35 Darks, 32 Flats, 32 Darkflats
Workflow:
PixInsight, Photoshop CC
Instrument:
Maksutov Newtonian Astrograph, D=190mm, f=1000mm
Filter:
Optolong LeXtreme
Exposure:
79 x 300sec;
Total Integration Time:
6h 35min
Camera:
ZWO ASI 294 MC Pro
Gain:
121
Image Calibration:
35 Darks, 50 Flats, 50 Bias
Workflow:
PixInsight, Photoshop CC
Composit RGB, H alpha+OIII (Dual narrowband), 13h 35min total integration time