Messier 101

Image Description and Details : Location: Upper Austria
Date taken: April 2022
Distance: 20 million light years
Diameter: 170,000 light years
Exposure: RGB each 40 x 300 sec.
Luminance: 245 x 150 sec.
H-Alpha: 45 x 900 sec
Total: 31.4 hrs

Calibration: BIAS / Flats / DarkFlats
Mount: Skywatcher EQ6-R PRO
Telescope: Lacerta Fotonewton 250/1000
Corrector: Lacerta GPU coma corrector
Filter: Antlia LRGB-V Pro
Antlia 3nm Pro H-Alpha
Camera: QHY268m @ Gain 0 / 56 at -15°C
Guiding: QHY OAG with QHY5III462c and PHD2
Software: APP / Photoshop CC

Copyright: Daniel Nimmervoll