How far is Ursa Major from the Earth?

Question 1: How far is the Big Dipper from the Earth? One of the giant binary stars, Shu Tianxing and Alpha Ursa major, has a companion star with a brightness of 4.8, whose main star has a mass four times that of the sun and a radius 32 times that of the sun. It is a huge star, 65,438+0,242 light years away from the Earth.

The second star of the Big Dipper, Beta Ursa Major, is a star in Ursa Major, with brightness of 2.4, etc. , 79.4 1. 1 light years away from the earth.

The third star of the Big Dipper, the gamma star of Ursa major, was also called Lucunxing in ancient China. People think it is in charge of the wealth of heaven and earth, and it is called the star of wealth. It is 83.7 1.4 light years away from the earth.

The fourth star of the Big Dipper, Delta Star of Ursa Major, is located at the junction of bucket handle and Doudou, the first star of Doudou, and the darkest star in the Big Dipper, 8 1.4 1.2 light years away from the earth.

Yuxing, the fifth star of the Big Dipper, is located at the junction of bucket handle and bucket handle, 80.9 1.2 light years away from the earth.

The sixth star of the Big Dipper is Kaiyang Star, and a dark star runs near it like a guard. This dark star is called Ursa major 80, which was called auxiliary star in ancient times. The distance between Kaiyang Star and the Earth is 78.2 1. 1 light-year.

The seventh shining star of the Big Dipper, η Star Ursa Major, also known as Broken Star, is located at the extreme end of bucket handle. It is the 39th bright star in the whole day, the blue and white main sequence star of B3V, and it is 10 1 2 light years away from the earth.

Question 2: The constellation Ursa Major is more than10 billion light years away from the Earth. Really? I've never heard of the expression Ursa Major. A more recent concept is the Ursa Major supercluster, which is about 980 million light years away, that is, 980 million light years away.

Obviously, I have tried my best to complete the landlord's statement, but I still can't find a statement that fits the landlord's problem. Although my knowledge is superficial, I can also say that my astronomy foundation is solid. Since I can't find my knowledge system, naturally, for ordinary people, it can be judged that this statement is wrong.

Question 3: In the blink of an eye, I can see how many light years the Big Dipper is from the Earth. The Big Dipper is only seen from the earth. They form a spoon shape. In fact, there is no connection between them and the distance is different.

The Big Dipper belongs to Ursa major, which is called Shu Tian, Tian Xuan, Celestial Pole, Tianquan, Yuheng, Kaiyang and Ursa major Eta in turn from the spoon edge. The official names are Ursa major α, β, γ, δ, ε, ζ and η.

Beidou-1 and Alpha Ursa major (Shu Tian): magnitude 1.79, etc. Distance 124 2 light years.

Beidou-2, Ursa Major β (Tian Xuan): magnitude 2.4, distance 79.4 1. 1 light-year.

Beidou-3, Ursa Major γ (Ursa Vernon): magnitude 2.5, distance 83.7 1.4 light years.

Beidou IV, Ursa Major δ (Tian Quan, Wenquxing): magnitude 3.4, distance 8 1.4 1.2 light years.

Beidou V, Ursa Major ε (Yuheng): magnitude 1.77, etc. , 80.9 1.2 light years away.

Beidou VI, Ursa Ursa (Wu Quxing, Kaiyang): magnitude 2.40, distance 78.2 1. 1 light-year.

Beidou VII. Eta Urae major: magnitude 1.86, etc. Distance 10 1 2 light years.

Question 4: How many stars are there within 10 light years from the Earth? Besides our sun, there are two stars within 10 light years. Centauri and Canis major.

Apparent distance of the constellation to which English names belong (light years)

Sun Sun -26.72

1 Sirius-1.46 8.6

2. Crotalaria japonica -0.72 80

3 Nanmener Betelgeuse Centauri -0.30 4.3

4 arcturus arcturus patriarch -0.04 30

5 Vega Lyra 0.03 25

6 Capella Auriga 0.08 40

Betelgeuse Orion Betelgeuse 0. 12 700

8 Nanhe Sannanhe Dog 0.38 1 1

Betelgeuse Orion Betelgeuse 0.50 500

10 Water Affairs Committee-A Cernar Bojiang Tower 0.46 80

1 1 Mawei-Hadar Centauri 0.6 1 330

12 Altair 0.77 16

13 cross II Acrux south cross 0.80 450

Aldebaran Taurus 0.85 60

15 Capricorn Pisces Virgo 0.97 350

16 antares Scorpio 0.96 500

17 Pollux Gemini 1. 14 35

18 Beiluoshimen Beiluoshimen South Aquarius 1. 16 22

19 Tianjin cygnus 1.25 1800

20 Cross Three Mimosa South Cross 1.25 500

2 1 Xuanyuan Fourteen Xuanyuan Fourteen Leo 1.35 70

22 Sagittarius vii a dharakanis1.50 600

23 Gemini of Beihe II 1.58 50

24 intersection south intersection 1.63 80

25 Subashawula Scorpio 1.63 300

26 Betelgeuse Bellatrix Orion 1.64 400

27 five cars and five Hernaz Taurus 1.65 130.

28 South Ship Five Miaplacidus Ship Bases 1.68 50

29 Alnilam Orion 1.70 1300.

30 Kelan-El Nair Kelan constellation 1.74 70

3 1 Yuheng Alioth Ursa major 1.77 60

32 Shu Tian Dubkh Ursa major 1.79 70

33-day ship three Milfa Kypper Theseus 1.80 500

Tian She 1 Regor canvas 1.82 1000.

35 Sagittarius 1.85 120, Saint-Coss South, Githu

36 Arrow Dog 1.86 2800

37 Shihai-Aavio Base 1.86 80

38 Shake Ursa major 1.86 150

39 Scorpio in Sargas, Su Wu 1.87 200

40 Menkali South Gate Callinan Auriga 1.90 60

4 1 triangle three rooms south triangle 1.92 100

42 Su Jing Sheng Henna Gemini 1.93 80

43 peacocks 1.94 peacocks 300

44 Military City-Mi Erzha kanis 1.98 700

45 stars-Alpha Ophiuchus 1.98 1 10

46th floor Susan Hamar Aries 2.00 70

47 Polaris Ursa minor 2.02 400

48 Dooku Sinuchi Sagittarius 2.02 200

49 toast empty Diphda whale oil 2.04 60

50 Betelgeuse Orion 2.05 1300...& gt& gt