M81, M82 in LRGB+Ha

2020-02-23 21:30-05:30

Low clouds followed by clear, no moon, some wind, 99% humidity, 1 degrees C

 

M81+M82

Exposures:

410x60s L

Rotation: 90 degrees

 

2020-02-27 21:00-05:30

Low clouds followed by clear, no moon, no wind, snow on ground, 90% humidity, -5 degrees C

 

M81+M82

Exposures:

(118+119+120)x60s RGB

23x90s Ha

Rotation: 90 degrees

 

2020-03-13 21:00-23:30

Very clear, rising moon, no wind, snow on ground, 85% humidity, -3 degrees C

 

M81+M82

Exposures:

87x90s Ha

Rotation: 90 degrees

 

Camera: ASI1600MM-COOL+ZWO EFWmini, Baader R,G,B,Ha, IDAS LPS-D1, gain 200, offset 50, -20C

Lens: TS-Optics 8″ f/4 UNC Newtonian with GPU Superflat 2″ Coma Corrector

Mount: EQ6-R Pro

QHY 5L-II-M OAG auto guider

Software: Sequence Generator Pro, PixInsight, Photoshop

Location: Borås, Sweden

Done