Here's a breakdown:
* No single object: Our galaxy isn't orbiting a star or black hole like planets do around a sun.
* Gravitational influence: The Milky Way, along with other galaxies in the Local Group, are constantly interacting through gravity. This interaction causes the galaxies to move and shift, creating a dynamic system.
* The Great Attractor: There is a region in space known as the Great Attractor which is thought to be a massive concentration of matter (potentially containing many galaxies) that exerts a strong gravitational pull on our galaxy and others.
* Future movement: The Milky Way is on a collision course with the Andromeda Galaxy, our closest large neighbor. This collision, estimated to happen in about 4 billion years, will likely cause a major shift in the dynamics of our Local Group.
So, while our galaxy isn't orbiting a single thing, it is moving and interacting with other galaxies under the influence of gravity, creating a complex and constantly changing dance in the universe.