NGC 888

NGC 888
NGC 888 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationHorologium
Right ascension02h 17m 27.1s
Declination−59° 51′ 40″
Redshift0.029190±0.000133
Heliocentric radial velocity8,751±40 km/s
Galactocentric velocity8662±40 km/s
Distance416.7 ± 29.2 Mly (127.76 ± 8.96 Mpc)
Apparent magnitude (V)13.0
Apparent magnitude (B)14.0
Surface brightness12.52
Characteristics
TypeE1? pec · E/S0? E
Apparent size (V)0.8′ × 0.8′
Notable featuresFlat-spectrum radio source
Other designations
PGC 8743
ESO 115-2
AM 0215-600

NGC 888 is a large and relatively distant elliptical galaxy in the constellation Horologium. Its velocity relative to the cosmic microwave background is 8662±40 km/s, corresponding to a Hubble distance of 127.8±9.0 Mpc. It was discovered by British astronomer John Herschel in 1834.

Characteristics

A redshift-independent distance measurement gives 136.0 Mpc, which is consistent within uncertainties with the Hubble distance.

NGC 888 is classified as a flat-spectrum radio galaxy.

Galaxy pair

NGC 888 and ESO 115-003 form a galaxy pair. The Hubble distance of ESO 115-003 is 134.65±9.45 Mpc. Considering the uncertainties in the distances, it is possible that the two galaxies form a physical pair.

Supernova

One supernova has been observed in NGC 888:

References

  1. 1 2 3 4 5 6 7 8 9 10 "Results for object NGC 888". NASA/IPAC Extragalactic Database. Retrieved 20 June 2022.
  2. 1 2 3 4 5 6 "Revised NGC and IC Catalog by Wolfgang Steinicke, NGC 800–899". astrovalleyfield.com. Retrieved 6 January 2024.
  3. 1 2 Courtney Seligman. "Celestial Atlas – NGC 888". Retrieved 20 June 2022.
  4. ↑ "NGC 888 on HyperLeda". Retrieved 10 December 2018.
  5. ↑ "Your NED Search Results. Distance Results for NGC 888". NASA/IPAC Extragalactic Database. Retrieved 21 June 2022.
  6. ↑ Soares, D. S. L.; de Souza, R. E.; de Carvalho, R. R.; Couto da Silva, T. C. (1995). "Southern binary galaxies. I. A sample of isolated pairs". Astronomy and Astrophysics Supplement. 110: 371. arXiv:astro-ph/9410092. Bibcode:1995A&AS..110..371S.
  7. ↑ "Results for object ESO 115-G 003". NASA/IPAC Extragalactic Database. Retrieved 20 November 2023.
  8. ↑ Shumkov, V.; Lipunov, V.; Buckley, D.; Podesta, R.; Levato, H.; Gorbovskoy, E.; Tyurina, N.; Balanutsa, P.; Kuznetsov, A.; Kornilov, V.; Kuvshinov, D.; Vladimirov, V.; Potter, S.; Kniazev, A.; Budnev, N.; Gress, O.; Ivanov, K.; Lopez, C.; Mallamaci, C.; Lopez, C.; Podesta, F.; Pogrosheva, T. (2016). "MASTER: Bright PSN in NGC 0888". The Astronomer's Telegram. 9396: 1. Bibcode:2016ATel.9396....1S.
  9. ↑ "SN 2016frs". Transient Name Server. IAU. Retrieved 2 March 2026.