Galactic halo

component of a galaxy

A galactic halo is a roughly spherical part of a galaxy. It extends beyond the main, visible part.[1] Several components make up the halo:[2][3]


  1. "OpenStax Astronomy". OpenStax.
  2. Helmi, Amina (June 2008). "The stellar halo of the Galaxy". The Astronomy and Astrophysics Review. 15 (3): 145–188. arXiv:0804.0019. Bibcode:2008A&ARv..15..145H. doi:10.1007/s00159-008-0009-6. ISSN 0935-4956. S2CID 2137586.
  3. Maoz, Dan (2016). Astrophysics in a Nutshell. Princeton University Press. ISBN 978-0-691-16479-3.