NGC 4490 with its smaller companion, NGC 4485 in Canes Venatici.

Imaging Camera: QSI640wsg
Imaging Scope: Celestron 9.25"Edge HD at F/10
Guide Camera: SX Lodestar
Mount: Avalon M-Uno Fast Reverse
Filters: Astrodon Gen II LRGB
Exposure: 4 hours Lum, 5 minute subs binx2 , 80 min each RGB 5 minute subs binned x 2
Processing: CCD Stack and PS CC
Date: Feb 20, 2017
Sky conditions: below average seeing. Good transparency.
Location: My front driveway. Morristown, NJ