What is the local group?
The local group of galaxies is the local gravitational family of the Milky Way. The local group consists of more than 30 galaxies distributed on average 10 million light -years. Its three peaks are Galaxy Milky Way, Andromeda Galaxy and Triangulum Galaxy. The accompanying these galaxies are dozens of small satellite galaxies, one with only 100,000 stars, unlike 200-400 billion Milky Way stars. Some of these satellites, called dwarf galaxies, include a large Magellan cloud, a small Magellan cloud, the main dwarf Canis, Ursa Minor Dwarf and Draco Trp.
The focus of the local group is somewhere between the Milky Way galaxy and Andromeda Galaxy, which are about two million light -years apart. These galaxies can collide in two billion years to create a large elliptical galaxy. Because the Andromeda Galaxy moves towards the sun about 300 km/s (186 miles/sec.), It is one of the few blue shifted galaxies in space from, our advantageous point. Most galaxies are shiftedRed because the expansion of the universe stretches the interventing light and increases its wavelength, so it is reddish.
The Andromeda Galaxy has significantly more stars than the Milky Way galaxy. The last estimate taken with the pictures taken Spitzer Space Telescope estimates Count Andromed on the stars of approximately 10
The local group is built into the virgin SuperCluster, which contains about 100 groups of galaxies similar to size to the local group called clusters. The local group moves towards the central cluster called the cluster of the Virgin, which Hkezi 1300 and 2000 galaxies. Virgin SuperCluster as a whole is moving fastIt is towards a cosmological feature called Great Atractor, a localized concentration of tens of thousands of galaxies between 150 million and 250 million light years away. On the largest scale, the universe expands and every galaxy eventually breaks down.