What constellation is this? What deep space objects are there?

This is Orion, a famous constellation in the winter sky.

Orion has a zero-order star, a first-order star, five second-order stars and three third-order stars. Betelgeuse is the sixth star in the whole day, the ninth brightest star in the whole day and the brightest constellation.

Orion is one of the zodiac signs, with an area of 594 square degrees, ranking 26th among 88 constellations in the whole day. Orion lies between Gemini, Unicorn, Canis Canis, Taurus, Rabbit, Bojiang and Canis Canis, and its north is in the Milky Way. The main body of the constellation consists of four bright stars, Betelgeuse and Betelgeuse, forming a quadrilateral.

There are many deep space objects in Orion.

The Great Orion Nebula (M42) has a diameter of about 16 light years and an apparent magnitude of 4, which can be clearly seen by naked eyes. Distance to Earth 1500 light years.

The Horsehead Nebula (NGC 1434) located in Betelgeuse (Orion ζ) is a dark nebula, shaped like a horsehead, and is a part of the molecular cloud of Orion. It is about 1500 light-years away from the earth.

M43 is one of the messier objects, numbered NGC 1982 among NGC celestial bodies, and also known as Dimalun Nebula. It is a diffuse nebula located in Orion, with a distance of 1600 light years and an apparent magnitude of 9.0, which is invisible to the naked eye. This nebula is next to M42.

M78 is the messier objects, and M78 is a reflection nebula located in Orion. M78 is a part of the large nebula region formed by M42 and M43. Distance 1600 light years, about 4-5 light years. Nebulae are forming young stars.