Messier 65
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| Messier 65 | |
|---|---|
| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. Image taken by Hubble Space Telescope, December 30, 2013.[1]Template:R/superscript Credit: ESA/Hubble & NASA | |
| Observation data (J2000 epoch) | |
| Constellation | Leo |
| Right ascension | Template:RA[2]Template:R/superscript |
| Declination | Template:DEC[2] |
| Redshift | 0.002692±0.000010[2] |
| Heliocentric radial velocity | 807±3 km/s[2] |
| Galactocentric velocity | 723±5 km/s[2] |
| Distance | 41–42 Mly (12.57–12.88 Mpc) |
| Apparent magnitude (V) | 9.3[3] |
| Characteristics | |
| Type | SAB(rs)a,[2] LINER[2] |
| Size | 113,500 ly (34.76 kpc) (estimated)[2] |
| Apparent size (V) | 8.709 × 2.454 moa[4]Template:R/superscript |
| Other designations | |
| NGC 3623,[2] UGC 6328,[2] PGC 34612[2] | |
References: SIMBAD: Search M65 | |
Messier 65 (also known as NGC 3623) is an intermediate spiral galaxy about 35 million light-years away in the constellation Leo, within its highly equatorial southern half. It was discovered by Charles Messier in 1780. With M66 and NGC 3628, it forms the Leo Triplet, a small close group of galaxies.
Discovery
M65 was discovered by Charles Messier and included in his Messier Objects list. However, William Henry Smyth accidentally attributed the discovery to Pierre Méchain in his popular 19th-century astronomical work A Cycle of Celestial Objects (stating "They [M65 and M66] were pointed out by Méchain to Messier in 1780"). This error was, in turn, picked up by Kenneth Glyn Jones in Messier's Nebulae and Star Clusters. This has since ramified into a number of other books by a variety of authors.
Star formation
The galaxy is low in dust and gas, and there is little star formation in it, although there has been some relatively recently in the arms. The ratio of old stars to new stars is correspondingly quite high. In most wavelengths, it is quite uninteresting, though there is a radio source visible in the NVSS, offset from the core by about two arc-minutes. The identity of the source is uncertain, as it has not been identified visually or formally studied in any published papers.[5]Template:R/superscript
Interaction with other galaxies
To the eye, M65's disk appears slightly warped, and its relatively recent burst of star formation is also suggestive of some external disturbance. Rots (1978) suggests that the two other galaxies in the Leo Triplet interacted with each other about 800 million years ago. Recent research by Zhiyu Duan suggests that M65 may also have interacted, though much less strongly. He also notes that M65 may have a central bar—it is difficult to tell because the galaxy is seen from an oblique angle—a feature which is suggestive of tidal disruption.[6]Template:R/superscript
Supernova
One supernova has been observed in Messier 65:
- SN 2013am (Type II, mag. 15.6) was discovered by Matsuo Sugano on 21 March 2013.[7]Template:R/superscript[8]Template:R/superscript[9]Template:R/superscript
Gallery
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Messier 65 by the Sloan Digital Sky Survey
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HST image of M65
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M65 by Hubble Space Telescope
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M65 as imaged from the Mount Lemmon Observatory
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Messier 65 by 2MASS
See also
References
- ^ Page Module:Citation/CS1/styles.css has no content."Messier 65 through the years". ESA/Hubble Picture of the Week. Retrieved 3 January 2014.
- ^ a b c d e f g h i j k Page Module:Citation/CS1/styles.css has no content."NED results for object MESSIER 065". NASA/IPAC Extragalactic Database. Retrieved 2006-10-21.
- ^ Page Module:Citation/CS1/styles.css has no content."Messier 65". SEDS Messier Catalog. Retrieved 25 April 2022.
- ^ Page Module:Citation/CS1/styles.css has no content."M 65". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2008-07-09.
{{cite web}}: Invalid|mode=Script error: No such module "Citation mode".(help) - ^ Page Module:Citation/CS1/styles.css has no content."Multiwavelength Messier 65". Archived from the original on 2010-06-21. Retrieved 2010-03-26.
- ^ Page Module:Citation/CS1/styles.css has no content.Zhiyu Duan (2006). "Multicolor Photometry and Stellar Population Synthesis Study of the Interacting Galaxies of the Leo Triplet". Astronomical Journal. 132 (4): 1581–1592. Bibcode:2006AJ....132.1581D. doi:10.1086/507304.
- ^ Page Module:Citation/CS1/styles.css has no content.Nakano, S.; Sugano, M.; Kadota, K.; Benetti, S.; Tomasella, L.; Pastorello, A.; Cappellaro, E.; Turatto, M.; Ochner, P. (2013). "Supernova 2013am in M65 = PSN J11185695+1303494". Central Bureau Electronic Telegrams (3440): 1. Bibcode:2013CBET.3440....1N.
- ^ Page Module:Citation/CS1/styles.css has no content.Benetti, S.; Tomasella, L.; Pastorello, A.; Cappellaro, E.; Turatto, M.; Ochner, P. (2013). "PSN J11185695+1303494 in M65 is a young type II supernova". The Astronomer's Telegram. 4909: 1. Bibcode:2013ATel.4909....1B.
- ^ Page Module:Citation/CS1/styles.css has no content."SN 2013am". Transient Name Server. IAU. Retrieved 14 April 2026.
External links
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- SEDS Messier: Spiral Galaxy M65
- Template:WikiSky
- Page Module:Citation/CS1/styles.css has no content.Szymanek, Nik; Gray, Meghan. "M65 – Spiral Galaxy". Deep Sky Videos. Brady Haran.
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