Messier 82 was discovered in 1774 by Johann Elert Bode, rediscovered by Pierre Mechain August 1779 who reported them to Charles Messier, who added them to his catalog in 1781.
M 82 is the prototype irregular starburst disk galaxy. In the core of M 82, the active starburst region spans a diameter of 500 parsecs.
Tendrils of material extend away from the nucleus, suggesting a colossal explosion. Studies have revealed filaments expanding outward from M 82 at 600 miles per second.
Imaged over 5 nights from my home in Gérgal, Spain.
Technical summary:
Captured: 26,27,28-02-2023 & 02,03-03-2023
Imaging Sessions: 5
Location: Gérgal, Andalucía, Spain
Bortle Class: 4
Total Integration: 32h 28m
Filters:
Red 349x 60s 5h 49m BIN 3 Gain 100 -5C SQM 20.7
Green 300x 60s 5h 00m BIN 3 Gain 100 -5C SQM 20.7
Blue 300x 60s 5h 00m BIN 3 Gain 100 -5C SQM 20.7
UV/IR 484x 60s 8h 04m BIN 3 Gain 100 -5C SQM 20.7
Ha 103x 300s 8h 35m BIN 3 Gain 100 -5C SQM 20.7
Pixel Scale: 0.33 arcsec/pixel
Telescope: Celestron C11 Edge HD 2800mm fl
Image Camera: ZWO ASI 6200MM Pro
Guiding: ZWO OAG L with ZWO ASI 192MM Mini
Filters: Astronomik R, G, B, UV/IR, Ha
Mount: Skywatcher EQ6R Pro
Computer: Minix NUC
Capture software: NINA, PHD2
Processing Software: PixInsight, Adobe Lightroom
copyright: Eric Smith