NGC7331_2012-09-16-27x300s_L_cal_DBE-nr

The same NGC7331 as before. 27x300s exposure. Luminence only. Added flats for my L filter. Made a big difference! ST-2000XM camera, Celestron C8 at 1300mm focal length. Astro-physics Mach1 mount.

 

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Taken on September 17, 2012