Located to the south of the star Alnitak, the easternmost of Orion’s famous three-star belt and part of the vast Orion molecular cloud, the Horsehead Nebula is the closest giant star-forming ...

Its most famous signpost are the three stars of Orions Belt — Alnitak, Alnilam and Mintaka. During October and November, Orion will be in the southeastern sky around midnight, precisely when the ...