An approximately extended component surrounding a galactic disk, distinguished according to whether one means the stellar halo, gaseous halo or dark matter halo. These components have different constituents and scales.
The Galactic halo is a large, spherical region that surrounds the disk of a galaxy, such as the Milky Way. It contains a sparse population of stars, globular clusters, and dark matter. Here are some key features of the Galactic halo: 1. **Structure**: The halo is not as densely populated as the galactic disk, which contains most of the galaxy's stars, gas, and dust.
New to topics? Read the docs here!