16 Jun 2025
NGC 3521 (PGC 33550) is a flocculent intermediate spiral galaxy in Leo. Its morphological classification is SAB(rs)bc which means that it is a spiral galaxy with a trace bar structure (SAB), a weak inner ring (rs), and a moderate to loosely wound arm structure (bc).
NGC 3521
12 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Blue | 312 | 4h25m | 51 |
| Luminance | 288 | 4h | 50 |
| Red | 300 | 4h10m | 50 |
| Green | 300 | 4h10m | 50 |