1.5X crop
Annotated| 0bject | Arp 321 Hickson 40 Galaxies in Hydra |
| Date | March 10-11, 2026 |
| Exposure | LRGB 175:60:60:55 (5.8 hous, 1/2 crop) |
| 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, Astronomy Tools, Topaz Denoise AI |
| Comments | Good seeing (FWHM ~ 2.7) ; acquired with CCD Commander from Animas, NM |