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NGC 777

Summary

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]

NGC 777
NGC 777
Observation data (J2000 epoch)
ConstellationTriangulum
Right ascension2h 00m 14.907s[1]
Declination31° 25′ 46″[1]
Redshift0.016708[1]
Heliocentric radial velocity5,015 km/s[2]
Distance189 million ly (58.075 mpc)[2]
Apparent magnitude (V)12[3]
Characteristics
TypeE1[3]
Apparent size (V)2.5' x 2.0'[3]
Other designations
CGCG 503-67, MCG 5-5-38, PGC 7584, UGC 1476

References edit

  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.

External links edit

  •   Media related to NGC 777 at Wikimedia Commons