NGC 4527
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| NGC 4527 | |
|---|---|
| SDSS image of the spiral galaxy NGC 4527. | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 34m 08.466s[1] |
| Declination | +02° 39′ 14.414″[1] |
| Redshift | 0.005791[1] |
| Heliocentric radial velocity | 1736 ± 1 km/s[1] |
| Distance | 48.9 Mly |
| Apparent magnitude (V) | 11.4[1] |
| Characteristics | |
| Type | SAB(s)bc[1] |
| Size | ~104,100 ly (31.92 kpc) (estimated)[1] |
| Apparent size (V) | 6.2′ ×ばつ 2.1′[1] |
| Other designations | |
| IRAS 12315+0255, UGC 7721, MCG +01-32-101, PGC 41789, CGCG 042-156[1] | |
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NGC 4527 is a spiral galaxy in the constellation Virgo. It was discovered by German-British astronomer William Herschel on 23 February 1784.[2]
NGC 4527 is a member of the M61 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[3]
Characteristics
[edit ]NGC 4527 is an intermediate spiral galaxy similar to the Andromeda Galaxy [4] and is located at a distance not well determined, but usually is considered to be an outlying member of the Virgo Cluster of galaxies,[5] being placed within the subcluster known as S Cloud.[6]
Unlike the Andromeda Galaxy, NGC 4527 is also a starburst galaxy, with 2.5 billion solar masses of molecular hydrogen concentrated within its innermost regions.[7] However said starburst is still weak and seems to be on its earliest phases.[7]
Supernovae
[edit ]Three supernovae have been observed in NGC 4527:
- Harlow Shapley discovered SN 1915A (type unknown, mag. 15.5) on 20 March 1915.[8] [9] [10]
- Several astronomers reported the discovery of SN 1991T (type Ia-pec, mag. 13) on 13 April 1991.[11] [12]
- SN 2004gn (type Ic, mag. 16.6) was discovered on 1 December 2004 by the Lick Observatory Supernova Search (LOSS).[13] [14] [15]
See also
[edit ]References
[edit ]- ^ a b c d e f g h i "NASA/IPAC Extragalactic Database". Results for NGC 4527. Retrieved 2013年10月12日.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 4527". Celestial Atlas. Retrieved 6 December 2024.
- ^ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010年11月27日.
- ^ "Best of AOP: NGC 4527". NOAO. Retrieved 2013年10月12日.
- ^ "Notes for object NGC 4527". NASA-IPAC Extragalactic Database. Retrieved 2013年10月12日.
- ^ "Galaxy On Line Database Milano Network (GOLDMine)" . Retrieved 2012年08月06日.
- ^ a b Shibatsuka, T.; Matsushita, S.; Kohno, K.; Kawabe, R. (2003). "Multi-Line Observations of Molecular Gas in the Central Region of the Low Star-Formation Efficiency Starburst Galaxy NGC 4527". Publications of the Astronomical Society of Japan. 55 (1): 87–101. Bibcode:2003PASJ...55...87S. doi:10.1093/pasj/55.1.87 .
- ^ "SN 1915A". Transient Name Server. IAU . Retrieved 6 December 2024.
- ^ Central Bureau for Astronomical Telegrams list of Supernovae. Retrieved 28 March 2023.
- ^ Shapley, Harlow (1917). "A Faint Nova in the Nebula of Andromeda". Publications of the Astronomical Society of the Pacific. 29: 213. Bibcode:1917PASP...29Q.213S.
- ^ Waagen, E.; Evans, R. O.; Villi, M.; Cortini, G.; Johnson, W.; McNaught, R. H.; Mueller, J.; Cappellaro, E.; Cutispoto, G.; La Franca, F.; Goldschmidt, C.; Kirshner, R. P.; Peters, J. (1991). "Supernova 1991T in NGC 4527". International Astronomical Union Circular (5239): 1. Bibcode:1991IAUC.5239....1W.
- ^ "SN 1991T". Transient Name Server. IAU . Retrieved 6 December 2024.
- ^ "SN 2004gn". Transient Name Server. IAU . Retrieved 6 December 2024.
- ^ Li, W. (2004). "Supernovae 2004gn and 2004go". International Astronomical Union Circular. 8448: 2. Bibcode:2004IAUC.8448....2L.
- ^ Bishop, David. "Bright Supernovae - 2004, entry for SN 2004gn". Rochester Astronomy. Retrieved 25 November 2024.
External links
[edit ]- Media related to NGC 4527 at Wikimedia Commons
