| NGC 4697 | |
|---|---|
 NGC 4697 imaged by the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12 48 35.9 |
| Declination | −05° 48′ 03″ |
| Redshift | 1241 ± 1 km/s |
| Distance | ~ 38 Mly / ~ 50 Mly |
| Apparent magnitude (V) | 10.97 |
| Characteristics | |
| Type | E6 |
| Apparent size (V) | 4.4′ × 2.8′ |
| Other designations | |
| Caldwell 52, UGCA 300, MCG -01-33-010, PGC 043276 | |
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. 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.
The distance to NGC 4697 is not known with high precision: measurements vary from 28 to 76 million light-years. According to the NASA Extra-galactic Database, the average is about 38 million light-years; according to SIMBAD, about 50 million light-years.
The supermassive black hole at the core of NGC 4697 has a mass of 1.3+0.18
−0.17×10 M☉ as measured from Atacama Large Millimeter Array observations of the rotation of the central gas disk.
One supernova has been observed in NGC 4697: SN 2018imd (type Ia, mag. 15.5).
Gallery
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NGC 4697 by the Sloan Digital Sky Survey
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NGC 4697 from the Hubble Space Telescope.
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References
- ^ "NED results for object NGC 4697". NASA/IPAC Extragalactic Database. Retrieved 2010-11-28.
- ^ "NGC 4697". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2010-11-28.
- ^ "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.
{{cite journal}}:|last2=has generic name (help) - 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
| Caldwell catalogue | |
|---|---|
| List |
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| See also | |
