Traditional Culture Encyclopedia - Weather inquiry - Which direction is the Big Dipper?
Which direction is the Big Dipper?
The direction of the Big Dipper changes with the seasons. The Big Dipper appears in different directions in the sky in different seasons and at different times at night. Therefore, the ancients decided the seasons according to the direction pointed by bucket handle when he fainted for the first time: bucket handle pointed to the east, and the world was spring; Guide to barrel handle, it's summer in the world; Bucket handle refers to the west, and the world is autumn; The barrel handle refers to the north, and it is winter all over the world. The Big Dipper is the star of Shu Tian, also called Bear Sitting A, and its English name is Dubhe. This is a binary star system. The apparent magnitude of the main star we see is 1.79, and the distance is 124 light years. This is an orange giant with a mass four times that of the sun and a radius 32 times that of the sun. It is a red superstar who is only 320 million years old and has entered his later years. Tianxing, also known as Beta Ursa major, is Merak in English. The visual magnitude is 2.37, which is 79 light years away. Its mass is three times that of the sun and its radius is about three times that of the sun. Currently in the main sequence star stage; Vernacular star, also known as Ursa major, is called Phecda in English. The visual magnitude is 2.5, which is 84 light years away from us. Its mass is about three times that of the sun and its radius is also three times. It is similar to the celestial star and is currently in the main sequence star stage. Celestial star, also known as the constellation delta Ursa major, is called Megrez in English. The visual magnitude is 3.4, which is 8 1 light-year away from us. Its mass is about 1.5 times that of the sun, and its radius is almost 1.5 times that of the main sequence star. Yuxing, also known as Bear Sitting ε, is called Alioth in English. The visual magnitude is 1.7, which is 8 1 light-year away. Its mass is about three times that of the sun and its radius is about four times that of the sun, which is in the main sequence star stage. Kaiyang star, also known as Ursa major, is named Mizar in English. The visual magnitude is 2.4, and the distance is 78 light years. Its mass is about 2.2 times that of the sun and its radius is about 2.4 times that of the sun. This is another binary system in the Big Dipper. The companion star is Ursa major 80 with an apparent magnitude of 3.95. When the weather is clear and the air is fresh, you can see things with good eyesight. Rock star, also known as Ursa major η, English name Alkaid. The visual magnitude is 1.8, and the distance is 10 1 light-year. Its mass is about 6./kloc-0 times that of the sun, and its radius is about 3.4 times that of the sun. It is the youngest of the Big Dipper, with only 10 long live, and has just entered the main sequence star stage.
- Previous article:What does spicy chicken mean in Guangzhou dialect?
- Next article:It is windy today. What is the gale level?
- Related articles
- What is the reason why the sand falls on the wall? Is there a way to solve it?
- Why is it so cold that you pee a lot?
- How to plan a trip to Japan in summer vacation 14 days?
- The weather in Yucheng is 30 days.
- Fishing in hot and rainy summer, which four "changes" have you mastered, and fishing is enjoyable and relaxed?
- Lenovo S720 mobile phone desktop weather clock gadget
- After reading Chinese Expeditionary Force, I admire Han Shaogong. I wonder if there is such a person in the history of China?
- Why? My hands and feet are cold in winter, but my hands and feet feel hot in summer?
- Monterey weather
- Beautiful valley weather