IC4628 · Prawn Nebula
| Chinese name | 对虾星云 |
|---|---|
| Type | Emission nebula |
| Constellation | Sco |
| RA | 16h57m |
| Dec | −40° |
| Apparent magnitude | 7.3ᵐ |
| Hemisphere | Southern |
| Best season | Summer |
| Difficulty | Moderate |
| Focal length | 短—中焦 300–700mm |
About
Roughly 6,000 light-years away near the tail of Scorpius, the Prawn Nebula is a vast red emission cloud some 250 light-years across, named for its shrimp-like shape. Rich in hydrogen and ionized by embedded young clusters, it is threaded with dark dust lanes. Set in a dense Milky Way field, it pairs well with nearby open clusters for wide-field narrowband work.