Imaged by Richard Walker (Dakota Starry Nights / YouTube), member of Black Hills Astronomical Society in Rapid City, SD - 2021
Imaged by Richard Walker
(Dakota Starry
Nights / YouTube), member of Black Hills Astronomical Society in Rapid City, SD -
2021
NGC 7822 is the northern most Emission Nebula in the night sky about 3,300 light years from Earth in the constellation Cepheus. It contains one of the hottest stars in the galaxy that are within 1 thousand parsecs (3,261 Light Years). The star is an O5V star meaning it is a blue star with a surface temperature of roughly 45,000K and a luminosity of more than 100,000 times that of the Sun.
Image
Technical Details:
Ha 2hr 30minutes
SII 2hr 10 minutes
OIII 50 minutes (Note the OIII channel was captured with a 25nm 1000 Oaks LP-2 filter stacked with a IR/UV cut filter)
Total integration 5 hrs 30 minutes
QHY268M / QHY CFW2 5-position 2″ filter wheel
Baader Ultra-Narrowband Filter-Set – CMOS-optimized
1000 Oaks LP2 (Blue Cell)
TS-Optics TSQ-80APO 80mm f/6.8 Quintuplet Apo with field flattener
Orion Atlas Pro AZ/EQ-G mount
EQ-MOD mount interface connected to a mini PC Windows 10
NINA acquisition and sequential software.
Windows 7 Laptop was use for a viewer.