Crop 1.3X
Arp 224
NGC 3972 & 3977
Annotated| 0bject | Arp 224 NGC 3921 Galaxy in Ursa Major |
| Date | April 5-8, 2025 |
| Exposure | LRGB 140:40:40:35 (4.25 hours, 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 | Moderate seeing; Acquired with CCD Commander from Animas NM |