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How to observe the famous constellations in the winter sky and how to observe them?

The most striking thing in the winter sky is Orion. Four bright stars are arranged in a quadrilateral, and three stars are neatly arranged in the center of the quadrilateral, which is called "Samsung" by the people. There are three stars under Samsung that are almost connected together, and the one in the middle looks blurred. It is the famous Orion Nebula M42, an irregular fan-shaped gas cloud, which is light green when observed with a low-power telescope.

Extending to the southeast along the three stars of Orion (δ, ε, ζ) is Canis major. Alpha Canis (Sirius) is the brightest star in the whole sky, and its apparent magnitude is-1.6, etc. In the Canine Constellation, besides Canine α, Canine μ, Canine ε and Canine ν' are also binary stars.

Looking northwest along the three stars of Orion, we can find another bright red star (Alpha Star of Taurus), and several small stars near it belong to the famous "Bi Cluster". If you continue to look north, you can see the Pleiades Cluster consisting of 6-7 small stars, all of which belong to Taurus.

In the northeast of Taurus, there is the five-pointed star Auriga. The main star of Auriga is Capella, a famous bright star in the northern sky, and there are three dark stars nearby.

Gemini stars are arranged in a rectangle. The bright star Gemini Alpha (named Beihe II) and Gemini Beta (named Beihe III) are not far apart, and the brightness is almost equal. Beihe III is slightly brighter than Beihe II, and we can find Gemini according to them.

To the west of Canis Canis and to the south of Orion are rabbits. After finding Orion, it is easy to find this small constellation. Several bright stars in it are arranged in an irregular cross-shaped herringbone.

Sagittarius to the south of Scorpio is also a small constellation. There are only two third-class stars in it, and the rest are very dark.