Is Ursa major the Milky Way? First of all, you should understand that all the stars visible to the naked eye, except the planets in the solar system, are sun-like stars. Stars that make up constellations are also stars (some are clusters or binary systems or galaxies).
Secondly, the constellation is a naming tool, which has been used to this day to facilitate the division of sky regions. Then I will explain to you that the Milky Way belongs to the local group of galaxies, and the local group of galaxies belongs to virgo supercluster. You can also say that the Milky Way belongs to Virgo, but technically the Milky Way does not belong to any constellation.
The Milky Way is the galaxy where the solar system is located, including 1000 to 400 billion stars, a large number of star clusters and nebulae, and various types of interstellar gas and interstellar dust. The diameter of the Milky Way is about120,000 light years (excluding the silver corona and peripheral materials), and the thickness of the center is about120,000 light years. The total mass of the Milky Way is 2 1000 billion times that of the sun (calculated in 20 15 years, with an error rate of 20%). Andromeda and its neighbors are the larger galaxies in this galaxy group.
The Milky Way is a rod-spiral galaxy with a huge disk structure, consisting of a bright and dense nuclear sphere, two main spiral arms and two unformed spiral arms, which are 4,500 light years apart. The sun is located on the arm of Orion, an arm of the Milky Way, and the distance to the center of the Milky Way is about 26,000 light years.
Ursa major-solar system in Ursa major. There is a solar system in Ursa major. It consists of a star and two planets orbiting the star in a circular orbit, which makes it more likely that there are planets similar to the earth's environment in space.
Fisher, an astronomer at the University of California, Berkeley, said: Of all the discovered solar systems, this one is the most similar to ours. Astronomers say that there are more than 70 planets discovered in other solar systems before, all of which orbit around stars in elliptical orbits, so temperature fluctuations are too extreme for derivative organisms. The chemical composition of this star in the Ursa major solar system is similar to that of our sun.
As for the two planets about the size of Jupiter, the distance between them and the star is also equivalent to the distance between Mars or Jupiter and our sun, which means that there may be other smaller planets closer to their stars in this Ursa Major solar system.
Singularity constellation network, an encyclopedia of constellation knowledge that many girls will pay attention to. Eight-character marriage, eight-character career, marriage fortune, constellation of wealth, emotional combination, seeing the other half, eight-character calculation, name speed matching, life fortune, compound opportunity, you can also consult the singularity constellation online at the bottom.