Messier 43

Messier 43
Emission nebula
H II region
De Mairan's Nebula (M43) taken by the Wide Field Channel of Hubble’s Advanced Camera for Surveys.
Observation data: J2000 epoch
Right ascension 05h 35.6m
Declination −05° 16
Distance 1600 ly
Apparent magnitude (V) +9.0
Apparent dimensions (V) 20x15
Constellation Orion
Notable features Trapezium cluster
Designations M43, NGC 1982,
De Mairan's Nebula

Messier 43 (also known as M43, De Mairan's Nebula, and NGC 1982) is an H II region in the Orion constellation. It was discovered by Jean-Jacques Dortous de Mairan before 1731. The De Mairan's Nebula is part of the Orion Nebula, separated from the main nebula by a lane of dust. It is part of the much larger Orion Molecular Cloud Complex.

Coordinates: 05h 35.6m 00s, −05° 16′ 00″

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