Messier 43 or M43, also known as De Mairan's Nebula and NGC 1982, is a star-forming nebula with a prominent H II region in the equatorial constellation of Orion.

Constellation: Orion

Apparent magnitude (V): 9

Distance: 1600 ly

Right ascension: 05^h 35^m 31.8^s

Did you know: M43 is separated from the main nebula by a large, dark dust lane.