NGC 777 is an elliptical galaxy in the constellation of Triangulum. It was discovered by William Herschel on September 12, 1784. It has a weak active nucleus of type Seyfert 2 or LINER 2,[4] implying that the central region is obscured. It may be an outlying member of galaxy cluster Abell 262.[5]

References

  1. ^ a b c "NGC 777". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-11-26.
  2. ^ a b "Results for Object NGC 0777". NASA/IPAC Extragalactic Database. Archived from the original on 2016-11-27. Retrieved 2016-11-26.
  3. ^ a b c "New General Catalog Objects: NGC 750 - 799". Cseligman. Retrieved 2016-11-26.
  4. ^ Ho, Luis C.; Filippenko, Alexei V.; Sargent, Wallace L. W. (1997). "A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies". The Astrophysical Journal Supplement Series. 112 (2): 315–390. arXiv:astro-ph/9704107. Bibcode:1997ApJS..112..315H. doi:10.1086/313041. S2CID 17086638.
  5. ^ Faber, S. M.; et al. (Seven Samurai) (1989). "Spectroscopy and Photometry of Elliptical Galaxies. VI. Sample Selection and Data Summary". The Astrophysical Journal Supplement Series. 69: 763–808. Bibcode:1989ApJS...69..763F. doi:10.1086/191327.
  • Media related to NGC 777 at Wikimedia Commons


Allikas: https://en.wikipedia.org/wiki/NGC_777
No tags for this post.