Astrophysics (index)about

galactic halo

(spherical region around a galaxy with gas, dark matter, etc.)

A galactic halo is a region around the visible part (bulk of the stars) of a galaxy, comprising of less visible parts of the same gravity-bound structure. The galactic halo includes:

(Note in some phrases, the word galactic is taken to imply our galaxy, Milky Way, but this phrase, galactic halo, is commonly applied to any galaxy.)

(galaxies,dark matter,plasma)

Referenced by:
astronomical quantities
Gould's Belt
high-velocity star
high-velocity cloud (HVC)
MACHO Project
Polar-ring Catalog (PRC)
Smith Cloud