M51 - The Whirlpool Galaxy

M51 - The Whirlpool Galaxy

 

Taken May 12, 13, and 14, 2018 near Seattle, WA

 

Telescope: TEC 180 @ f/7

Camera: ZWO ASI 178MM-Cool

Guide Camera: Starlight Xpress Lodestar

Mount: Astro-Physics 900GTO

Exposure:

 

Lum: 4 hours 30 minutes (135 x 2 min, bin 1x1)

 

R,G: 1 hour 25 minutes each (17 x 5 min, bin 1x1)

 

B: 1 hour 30 minutes (18 x 5 min, bin 1x1)

 

Total Integration Time: 8 hours 50 minutes

 

Processed in PixInsight 1.8 and PS CS5.

 

These three nights had some of the best seeing I've experienced in Seattle to date. I saw subframes as low as ~1.5" FWHM, with the average Lum stack being about 1.8"

Done