NGC 7101

NGC 7101
NGC 7101 imaged by SDSS
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension21h 39m 34.6127s
Declination+08° 52′ 36.832″
Redshift0.028410±0.000100
Heliocentric radial velocity8,517±30 km/s
Distance393.3 ± 27.6 Mly (120.58 ± 8.47 Mpc)
Apparent magnitude (V)14.7
Characteristics
TypecE
Size~135,300 ly (41.48 kpc) (estimated)
Apparent size (V)0.6′ × 0.6′
Other designations
2MASX J21393460+0852366, MCG +01-55-007, PGC 67118, CGCG 402-012

NGC 7101 is a compact elliptical galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 8,176±38 km/s, which corresponds to a Hubble distance of 393.3 ± 27.6 Mly (120.58 ± 8.47 Mpc). It was discovered by German astronomer Albert Marth on 3 August 1864.

Austrian astronomer Rudolf Ferdinand Spitaler also observed this galaxy, but he thought that it was NGC 7100, which is a star in the Milky Way. This error has been reproduced in some databases, such as SIMBAD.

Supernovae

Two supernovae have been observed in NGC 7101:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 7101". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 9 August 2026.
  2. 1 2 Seligman, Courtney. "New General Catalogue Objects: NGC 7101". Celestial Atlas. Retrieved 9 August 2026.
  3. ↑ "NGC 7100". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 August 2026.
  4. ↑ "SN 2018enb". Transient Name Server. IAU. Retrieved 9 August 2026.
  5. ↑ "SN 2025upj". Transient Name Server. IAU. Retrieved 9 August 2026.