| NGC 4697 | |
|---|---|
 NGC 4697 imaged by the
Hubble Space Telescope | |
| Observation data ( J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 48m 35.9s [1] |
| Declination | −05° 48′ 03″ [1] |
| Redshift | 1241 ± 1 km/ s [1] |
| Distance | ~ 38 Mly [1] / ~ 50 Mly [2] |
| Apparent magnitude (V) | 10.97 [1] |
| Characteristics | |
| Type | E6 [1] |
| Apparent size (V) | 4.4′ × 2.8′ [2] |
| Other designations | |
| Caldwell 52, UGCA 300, MCG -01-33-010, PGC 043276 [1] | |
NGC 4697 (also known as Caldwell 52) is an elliptical galaxy some 40 to 50 million light-years away in the constellation Virgo. It is a member of the NGC 4697 Group, a group of galaxies also containing NGC 4731 and several generally much smaller galaxies. [3] This group is about 55 million light-years away; it is one of the many Virgo II Groups, which form a southern extension of the Virgo Supercluster of galaxies. [3]
The distance to NGC 4697 is not known with high precision: measurements vary from 28 to 76 million light-years. [1] According to the NASA Extra-galactic Database, the average is about 38 million light-years; [1] according to SIMBAD, about 50 million light-years. [2]
The
supermassive black hole at the core of NGC 4697 has a mass of 1.3+0.18
−0.17×108
M☉ as measured from
Atacama Large Millimeter Array observations of the rotation of the central gas disk.
[4]
One supernova has been observed in NGC 4697: SN 2018imd ( type Ia, mag. 15.5). [5]
Gallery
-
NGC 4697 by the Sloan Digital Sky Survey -
NGC 4697 from the Hubble Space Telescope.
.jpg)
References
- ^ a b c d e f g h i "NED results for object NGC 4697". NASA/IPAC Extragalactic Database. Retrieved 2010-11-28.
- ^ a b c "NGC 4697". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-11-28.
- ^ a b "The Virgo II Groups". Atlas of the Universe. Retrieved 2010-11-28.
- ^ Davis, T. A.; Bureau, M.; Onishi, K.; Cappellari, M.; Iguchi, S.; Sarzi, M. (2017). "WISDOM Project - II. Molecular gas measurement of the supermassive black hole mass in NGC 4697". Monthly Notices of the Royal Astronomical Society. 468 (4): 4675. arXiv: 1703.05248. Bibcode: 2017MNRAS.468.4675D. doi: 10.1093/mnras/stw3217.
- ^ Transient Name Server entry for SN 2018imd. Retrieved 23 March 2023.
External links
-
Media related to
NGC 4697 at Wikimedia Commons - NGC 4697 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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| See also | |
