Crop 1.1X 
Stretched| 0bject | NGC 3521 Spiral galaxy in Leo |
| Date | March 26-29, 2015 |
| Exposure | LRGB 309:30:30:20 (cropped) |
| Camera | STL11000M with AstroDon Gen II filters |
| Telescope | ASA 10N f/3.7 on AP900GTO CP3 |
| Guiding | Remote guide head with MiniBorg 50 mm |
| Processing | MaximDL, Photoshop CS6, GradientXterminator, AstroActions, NIK Dfine |
| Comments | Marginal seeing with 1st quarter moon; acquired with CCD Commander |