Date Posted: 3/6/2024
Date Taken: Two nights, 2/3 - 2/4 2024
Scope: Planewave CDK 12.5 f/8, 2541mm
Camera: SBIG STL-11000 with Astrodon Tru-Balance E-Series Gen2 filters
Temp: -25C
Mount: Losmandy Titan
Guiding: On-axis via ONAG-XM and SX UltraStar at 2541mm. FocusLock real-time focus for focusing.
Exposure: LRGB 360:115:120:115. Luminance 15min unbinned; RGB 5min binned 2x2.

Calibrated and Stacked with CCDStack2; RGB combine and DDP with MaximDL. Processed with CS4.

NGC 3893 is a facing spiral galaxy located about 50 million light years away in Ursa Major. It features a number of tidal disturbances from NGC 3896, its smaller nearby neighbor seen to its upper left in this image. With an estimated diameter of 70,000 light years, NGC 3893 is about 30% smaller than the Milky Way.