Orion is three stars away from us How many stars does Orion consist of?

1. Orion is the most recognizable constellation in the winter night sky.

2. The four stars α, γ, β and κ in the constellation form a quadrilateral, and at its center, the three stars δ, ε and ζ are arranged in a straight line.

These are the seven brightest stars in Orion, among which α and β are first-class stars and the rest are second-class.

There are so many bright stars in a constellation, and the arrangement is so regular and magnificent. No wonder it is a symbol of strength, firmness and success all over the world. People always compare it to God, warrior, superman and hero.

5.？ The brightest star in Orion is Alpha, the sixth brightest star in the whole day.

6. Orion beta star ranks eighth among the bright stars in the whole day.

7. Every year 1 end of February, at 8: 00 pm, the three stars of Orion are high in the southern sky, so there is a folk saying that "the three stars are shining high and the New Year is coming".

8.？ The best observation date of Orion is1from early February to early April.

9. It rises from the southeast when it appears, and falls from the southwest after crossing the zenith.

10. Orion α and β are extremely bright and easy to see in a cloudless night sky. However, because there are many bright stars in the night sky in winter, other stars are needed to identify Orion, and the belt Samsung arranged in a straight line is usually used as its identification pointer.

1 1.？ The brightness of these three stars is 1.

12.7-2。

13.3, under the condition of little light damage, it is easy to be clearly seen by the sky. The two stars α and β are located at the north and south ends of the vertical line in the middle of the belt. After finding out, find out the two stars G and κ west of α and east of β, and the whole Orion outline has been called out! Date and time elevation azimuth 65438+February 1 day 2 1:0020-45 southeast east 65438+1 day 2 1: 0045-70 zenith southeast February/kloc-0. Orion's most famous celestial body should be the Big Nebula.

14.？ It is located in the south of Samsung, with an apparent magnitude of 4m. It looks like a white fog, which is very easy to identify.

15. There is also a nebula near Orion zeta. No stars illuminate it, and no one illuminates it with ultraviolet rays. It just hides the light of a bright nebula, so that we can see its outline-the shape of the horse's head, so this nebula is also called the horse's head nebula, which is a typical dark nebula.

16.？ Orion also has a meteor shower, which is located at the point where the connecting line between ζ star and α star doubles northward.

17. Its appearance date is from 65438+1October 17 to 65438+1October 25th, and its peak period is 65438+1October 2 1.

18. It was also caused by Halley's comet.