Messier Index/M43
| Messier 43 | |
|---|---|
 De Mairan's Nebula (M43) | |
| Observation data: w:J2000 epoch | |
| Type | Reflection and Emission |
| Right ascension | 05h 35.6m |
| Declination | -05° 16′ |
| Distance | 1.6 w:kly |
| Apparent magnitude (V) | +9.0 |
| Apparent dimensions (V) | 20′x15′ |
| Constellation | Orion |
| Physical characteristics | |
| Notable features | Trapezium cluster |
| Other designations | M43, NGC 1982, De Mairan's Nebula |
Messier 43 (also known as M43, De Mairan's Nebula, and NGC 1982) is an w:H II region in the w:Orion constellation. It was discovered by w:Jean-Jacques Dortous de Mairan before w:1731. The De Mairan's Nebula is part of the w:Orion Nebula, separated from the main nebula by a lane of w:dust. It is part of the much larger w:Orion Molecular Cloud Complex.
