Question

Digram of orion constellation with a short note on it .

Answer 1

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Answer 2

Orion is one of the largest constellations in the sky. It is supposed to look like the warrior Orion from Greek mythology. The constellation has other names in different cultures: it is mentioned under a Hebrew name in the Book of Job.

The constellation has a clear hour-glass shape with "Orion's Belt" in the centre. That part is made up of three bright stars (Alnitak, Alnilam, Mintaka) in line. The Orion constellation has 81 visible stars, including some of the brightest and most important stars in the night sky. Rigel is the brightest star in it, and Betelgeuse is a huge, rather unstable red giant.

The constellation includes a series of starburst nebulae where new stars are forming. The whole group of nebulae is known as the Orion complex. The complex is 1,500 to 1,600 light-years away, and hundreds of light-years across. It includes

The Orion nebula M42

M43

IC 434

The Horsehead nebula

Barnard's Loop

M78, a reflection nebula

NGC 1999

NGC 2175

NGC 2174

Orion molecular cloud

Flame nebula