NGC 3117

NGC 3117
NGC 3117 imaged by the Vera C. Rubin Observatory
Observation data (J2000 epoch)
ConstellationSextans
Right ascension10h 06m 10.5137s
Declination+02° 54′ 46.273″
Redshift0.022604±0.00000672
Heliocentric radial velocity6,776±2 km/s
Distance332.68 Mly (102.000 Mpc)
Group or clusterLDC 701
Apparent magnitude (V)14.3g
Characteristics
TypeE
Size~112,200 ly (34.39 kpc) (estimated)
Apparent size (V)0.98′ × 0.85′
Other designations
2MASX J10061053+0254467, UGC 5445, MCG +01-26-014, PGC 29340, CGCG 036-038

NGC 3117 is an elliptical galaxy in the constellation of Sextans. Its velocity with respect to the cosmic microwave background is 7,127±25 km/s, which corresponds to a Hubble distance of 342.9 ± 24.0 Mly (105.12 ± 7.37 Mpc). Additionally, one non-redshift measurement gives a similar distance of 332.68 Mly (102.000 Mpc). It was discovered by French astronomer Édouard Stephan on 15 March 1877.

LDC 701 group

NGC 3117 is a member of a galaxy group known as LDC 701. This group contains 3 galaxies, including IC 588 [de] and Z 36-39 [d].

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "Results for object NGC 3117". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 1 August 2026.
  2. 1 2 "Distance Results for NGC 3117". NASA/IPAC Extragalactic Database. NASA. Retrieved 1 August 2026.
  3. 1 2 Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). "Groups of Galaxies in the Two Micron All Sky Redshift Survey". The Astrophysical Journal. 655 (2): 790. arXiv:astro-ph/0610732. Bibcode:2007ApJ...655..790C. doi:10.1086/510201.
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3117". Celestial Atlas. Retrieved 1 August 2026.
  5. ↑ "[CHM2007] LDC 701". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 1 August 2026.