NGC 4727
(Redirected from NGC 4740)
| NGC 4727 | |
|---|---|
 NGC 4727 (center) with NGC 4724 (right) | |
| Observation data (J2000 epoch) | |
| Constellation | Corvus |
| Right ascension | 12h 50m 57.2497s[1] |
| Declination | −14° 19′ 58.350″[1] |
| Redshift | 0.025001[1] |
| Heliocentric radial velocity | 7,495±0 km/s[1] |
| Distance | 376.7 ± 26.4 Mly (115.49 ± 8.09 Mpc)[1] |
| Apparent magnitude (V) | 11.8[1] |
| Characteristics | |
| Type | SAB(r)bc pec?[1] |
| Size | ~251,400 ly (77.07 kpc) (estimated)[1] |
| Apparent size (V) | 1.6′ × 1.2′[1] |
| Other designations | |
| HOLM 470A, IRAS 12483-1403, NGC 4740, MCG -02-33-023, PGC 43499[1] | |
NGC 4727 is a large barred spiral galaxy in the constellation of Corvus. Its velocity with respect to the cosmic microwave background for is 7,830±23 km/s, which corresponds to a Hubble distance of 376.7 ± 26.4 Mly (115.49 ± 8.09 Mpc).[1] It was discovered by German-British astronomer William Herschel on 8 February 1785.[2] It was also observed by Lewis Swift on 27 April 1887, causing it to be listed twice in the New General Catalogue, as NGC 4727 and as NGC 4740.[2]
NGC 4727 and NGC 4724 are listed together as Holm 470 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[3]
Supernovae
[edit]Two supernovae have been observed in NGC 4727:
- SN 1965B (type unknown, mag. 16) was discovered by Enrique Chavira on 8 January 1965.[4][5]
- SN 2003eg (type II, mag. 15.8) was discovered by LOTOSS (Lick Observatory and Tenagra Observatory Supernova Searches) on 17 May 2003.[6][7]
See also
[edit]References
[edit]- ^ a b c d e f g h i j k "Results for object NGC 4727". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 23 December 2024.
- ^ a b Seligman, Courtney. "New General Catalogue Objects: NGC 4727". Celestial Atlas. Retrieved 23 December 2024.
- ^ Holmberg, Erik (1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems". Annals of the Observatory of Lund. 6: 1. Bibcode:1937AnLun...6....1H.
- ^ Gingerich, Owen (12 January 1965). "Circular No. 1887". Central Bureau for Astronomical Telegrams. Smithsonian Astrophysical Observatory, IAU. Retrieved 23 December 2024.
- ^ "SN 1965B". Transient Name Server. IAU. Retrieved 23 December 2024.
- ^ Ganeshalingam, M.; Graham, J.; Pugh, H.; Li, W. (2003). "Supernovae 2003ef, 2003eg, 2003eh, 2003ei, 2003ej, 2003ek". International Astronomical Union Circular (8134): 1. Bibcode:2003IAUC.8134....1G.
- ^ "SN 2003eg". Transient Name Server. IAU. Retrieved 23 December 2024.
External links
[edit]
Media related to NGC 4727 at Wikimedia Commons- NGC 4727 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
