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The Milky Way is the galaxy that includes the Solar System, with a diameter of 26.8 ± 1.1 kiloparsecs (87,400 ± 3,600 light-years ). It is a barred spiral galaxy with a supermassive black hole at its center and many satellite galaxies.
The data covers an area the sky equivalent to 8,600 full moons, and contains about 10 times more objects than a previous map released by the same team back in 2012.
Laniakea Supercluster is the galaxy supercluster that contains the Milky Way and about 100,000 other nearby galaxies. It was defined in 2014 by a new method based on galaxy velocities and has four subparts: Virgo, Hydra–Centaurus, Great Attractor, and Antlia Wall.
The Local Group is the galaxy group that includes the Milky Way, where Earth is located. It has a diameter of 10 million light-years and a mass of 2 × 10 12 solar masses, and consists of two collections of galaxies in a "dumbbell" shape.
The Large Magellanic Cloud is a dwarf galaxy and satellite of the Milky Way, located about 163,000 light-years away. It is the second- or third-closest galaxy to the Milky Way, after the Sagittarius Dwarf Spheroidal and the possible Canis Major Overdensity.
Learn about the 61 small galaxies that orbit the Milky Way, their characteristics, types, and discovery history. See a map with clickable regions and a list of satellite galaxies with their names, diameters, distances, and magnitudes.
The Galactic Center is the center of the Milky Way galaxy, where a supermassive black hole called Sagittarius A* is located. It is about 26,000 light-years away from Earth and has a dense stellar population, interstellar dust, and radio emission.
A supercluster is a large group of galaxy clusters or groups, among the largest structures in the universe. Learn about the existence, formation and observation of superclusters, and see a list of the nearest and most massive ones, including the Laniakea Supercluster that contains the Local Group.
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