We are in the galaxy. It belongs to the same galaxy group as the nearest Andromeda galaxy and other galaxies. What galaxy group is it?

It's called the local group of galaxies. It consists of the Milky Way and about 40 galaxies of different sizes, including Andromeda.

Galaxy cluster is a huge celestial system composed of galaxies, gases and a large number of dark matter under the action of gravity. At present, tens of thousands of galaxy clusters have been discovered, which are as far away as 7 billion light years. The famous ones are the Virgo cluster, the Late Constellation cluster and the Five Immortals cluster.

Andromeda galaxy (M3 1), also known as Andromeda Nebula, is about 2.2 million light years away from the Earth, and together with the Milky Way, it is the main member of this galaxy group. Its diameter is160,000 light years, its mass is not less than 3.1*1kloc-0/(which means power operation), and it contains more than 200 million stars, making it the largest one in this galaxy group.

Andromeda galaxy is located in Andromeda, and the best observation season is autumn. The coordinates of the celestial sphere are right ascension 0h4 1MO, right declination 4 1 00' and apparent magnitude Mv=3.5. It is the brightest spiral galaxy in the whole day and the farthest celestial body visible to the naked eye.

To the naked eye, Andromeda galaxy is a fuzzy oval spot. With a small telescope, we can see the structure including a large nebula and at least two dust belts. The closer to the core, the brighter it is. This core is not big, and the stars in it can be distinguished by a large telescope, otherwise it looks like stars with strong infrared radiation. Andromeda Satellite, two short elliptical galaxies, can also be seen on both sides of Andromeda with a small telescope. They are M32(NGC22 1) of E2 type and M 1 10(NGC205) of E5 type respectively. Andromeda belongs to Sb spiral galaxy with small central area and large spiral arms.