The Virgo Supercluster, often just called the Local Supercluster
The Milky Way is part of the Virgo Supercluster.
The Milky Way is part of the Local Group, which is part of the Virgo Supercluster.
The Solar System contains the Earth-Moon system. The Milky Way galaxy contains the Solar System. The Virgo supercluster contains the Milky Way galaxy. The Universe contains the Virgo supercluster.
Until now, the Milky Way was believed to be one galaxy in the 2,000 that make up what's known as the Virgo "supercluster".
The Milky Way galaxy is part of the Local Group, which is a collection of several galaxies. The Local Group, in turn, is a part of the larger Virgo Supercluster.
The Virgo Supercluster (in which the Milky Way is located) is about 200 million light years across.
The Earth is located within a supercluster called the Laniakea Supercluster. It is a vast system of galaxies that includes our Milky Way galaxy and thousands of others, bound together by gravity. The Laniakea Supercluster was defined in 2014 by astronomers studying the motions of galaxies in the universe.
After the Milky Way, the next galactic entity in Earth's address is the Local Group, which is a small group of galaxies that includes the Milky Way.
No, not at all. Jupiter is part of the Solar System, which is part of the Milky Way galaxy, which is part of the Local Group (of Galaxies), which is part of the Local Superclusters. Jupiter's mass is nothing when compared to the mass of Superclusters.
There is no larger rotational group for galaxies. The Milky Way galaxy and the Andromeda Galaxy, as part of the Local Group, are moving generally in one direction, toward an unidentified central mass in the direction of the constellation Centaurus. (This may be a gravitational effect of the Shapley Supercluster.)
The Virgo Supercluster contains over 100 galaxy groups and clusters, including the well-known Virgo Cluster. Estimates suggest that it harbors approximately 2,000 galaxies, although some sources propose that the total could be higher, potentially encompassing up to 3,000 galaxies when accounting for smaller groups and isolated galaxies. This supercluster is part of the larger Laniakea Supercluster, which includes our Milky Way galaxy.
In 1918 he used Cepheid variables to estimate the size of the Milky Way. The Shapley Supercluster of galaxies is named after him as well.