How to find De Mairan’s Nebula (M43)
This guide uses bright stars first, then narrows the field for a telescope or binocular finder. Use Orion as the main sky landmark.
Follow the route from one recognizable star to the next until you reach De Mairan’s Nebula (M43).
De Mairan’s Nebula (M43) is 47° above the horizon toward the South.
Use Orion as the large-scale sky landmark before following the numbered route.
field star · mag 3.8
From Alnitak, move about 0.8° toward the south-west until you reach field star · mag 3.8.
