SH2-108 Sadr_Ha
Sadr (Gamma Cygni) is the center star of the Northern Cross and is about 1,800 ly from earth. Its solar mass is 12.11 times that of the Sun, so it is destined to be a supernova someday. The nebulosity and dust clouds that appear to surround it are about 4,900 ly away, so they do not interact with Sadr.
This image shows 5 hours of integrated exposure time, shot at the hydrogen-alpha wavelength. The many thousands of other stars in the original image have been digitally removed to allow this cosmic Rorschach test to be seen in greater detail.
Rio Rancho NM Bortle 5 zone, June 28, 2022
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong h-alpha filter
ZWO ASI Air Pro
Sky-Watcher HEQ5
60 X 300s lights with darks bias dithering
Gain 111 at -10C
Processed in DSS, PS, and StarXTerminator
SH2-108 Sadr_Ha
Sadr (Gamma Cygni) is the center star of the Northern Cross and is about 1,800 ly from earth. Its solar mass is 12.11 times that of the Sun, so it is destined to be a supernova someday. The nebulosity and dust clouds that appear to surround it are about 4,900 ly away, so they do not interact with Sadr.
This image shows 5 hours of integrated exposure time, shot at the hydrogen-alpha wavelength. The many thousands of other stars in the original image have been digitally removed to allow this cosmic Rorschach test to be seen in greater detail.
Rio Rancho NM Bortle 5 zone, June 28, 2022
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong h-alpha filter
ZWO ASI Air Pro
Sky-Watcher HEQ5
60 X 300s lights with darks bias dithering
Gain 111 at -10C
Processed in DSS, PS, and StarXTerminator