Hamilton, Andrew J. S. Hubble Space Telescope Images and Spectra of the Remnant of SN 1885 in M31. The Astrophysical Journal. 1999-03-20, 514 (1) [2022-11-23]
Aschenbach, B. An X-ray study of IC 443 and the discovery of a new supernova remnant by ROSAT. Astronomy & Astrophysics. 1994, 284: 573. Bibcode:1994A&A...284
Centauri: Former Core of a Dwarf Galaxy? Omega Centauri: Proud Cluster or Sad Remnant? (页面存档备份,存于互联网档案馆) Omega Centauri at ESA/Hubble - link not operational