Nebula
NGC 604
One of the largest H II regions in the Local Group
A stellar nursery in the Triangulum Galaxy 1,500 light-years across, 100 times larger than the Orion Nebula; a giant bubble of gas carved out by more than 200 hot giant stars. Together with the Tarantula it is one of the largest nebulae in the Local Group.
| Type | Nebula |
|---|---|
| Constellation | Triangulum |
| Host galaxy | Triangulum (M33) |
| Distance | 840 kpc (M33) |
| Diameter | ~1,500 light-years |
| Apparent magnitude | 12 |
| Massive star | 200+ |
| Right ascension (J2000) | 1h 34m 33.5s |
| Declination (J2000) | +30° 46′ 59″ |
In the sky
Visible from the whole Northern Hemisphere and south to latitude 59° S. North of latitude 59° N it never sets. It stands highest at midnight in October, the best time to observe it.