M43 (NGC 1982)

De Mairan's Nebula

Typ:H II region nebula
Constellation:Orion
Size:20x15'
Distance:1.6 kLj
Brightness:9 mag
Position:RA:05h 35.6m DEC:−05° 16′
Max. height:34.73°, Dec. (midnight at +50°N)
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Discovered:Jean-Jacques Dortous de Mairan, 1731
Details:Read more on Wikipedia

The De Mairans Nebela is right next to the Orion Nebula M42.

The following crop shows M43 next to NGC1977, the Running Man Nebula: