| Discovery [1] | |
|---|---|
| Discovered by | B. A. Skiff |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 12 January 1983 |
| Designations | |
| (4147) Lennon | |
Named after | John Lennon (musician, The Beatles) [2] |
| 1983 AY ·1971 YG 1980 KA | |
| main-belt · Vestian [3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 44.51 yr (16,258 days) |
| Aphelion | 2.5524 AU |
| Perihelion | 2.1712 AU |
| 2.3618 AU | |
| Eccentricity | 0.0807 |
| 3.63 yr (1,326 days) | |
| 88.732° | |
| 0° 16m 17.4s / day | |
| Inclination | 5.7326° |
| 288.57° | |
| 302.94° | |
| Physical characteristics | |
| Dimensions | 5.171±0.087 km [4] [5] 7.13±0.37 km [6] 7.46 km (calculated) [3] |
| 137 h [7] | |
| 0.20 (assumed) [3] 0.240±0.049 [6] 0.4166±0.0564 [4] | |
| V [7] : 5 · S [3] | |
| 12.90 [6] ·13.0 [1] [3] [4] ·13.63±0.34 [8] | |
4147 Lennon, provisional designation 1983 AY, is a stony Vestian asteroid and a potentially slow rotator from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by American astronomer Brian Skiff at Lowell's Anderson Mesa Station on 12 January 1983. [9] It was later named after musician John Lennon. [2]
Lennon is a member of the Vesta family, which is named after the main-belt's second largest asteroid, 4 Vesta. It orbits the Sun in the inner main-belt at a distance of 2.2–2.6 AU once every 3 years and 8 months (1,326 days). Its orbit has an eccentricity of 0.08 and an inclination of 6° with respect to the ecliptic. [1] The first observation was made at Crimea–Nauchnij in 1971, extending the asteroid's observation arc by 12 years prior to its discovery. [9]
Lennon has been characterized as a V-type asteroid. [7] : 5
In October 2004, a rotational lightcurve of Lennon was obtained during a photometric survey of V-type asteroids at several observatories in Japan. The fragmentary lightcurve gave a very long rotation period of 137 hours with a high brightness variation of 0.6 in magnitude ( U=1 ). [7]
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Lennon measures 5.2 and 7.1 kilometers in diameter and its surface has an albedo of 0.24 of 0.42, respectively. [4] [5] [6] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for S-type asteroids of 0.20 and calculates a diameter of 7.5 kilometers with an absolute magnitude of 13.0. [3] The discrepancy is due to disagreement on the body's spectral type (V or S).
This minor planet was named in memory of English musician John Lennon (1940–1980), famous for his song "Imagine" and co-founder of The Beatles, one of the most successful bands in the history of popular music. [2]
The minor planets 8749 Beatles, 4149 Harrison, 4148 McCartney and 4150 Starr, were named after the band and its three other members. The official naming citation was published by the Minor Planet Center on 10 April 1990 ( M.P.C. 16247). [10]
4349 Tibúrcio, provisional designation 1989 LX, is a dark asteroid from the central region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 5 June 1989, by German astronomer Werner Landgraf at ESO's La Silla Observatory in northern Chile.
1024 Hale, provisional designation A923 YO13, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 45 kilometers (28 miles) in diameter. The asteroid was discovered on 2 December 1923, by Belgian–American astronomer George Van Biesbroeck at the Yerkes Observatory in Wisconsin, United States. It was named for American astronomer George Ellery Hale. The dark C-type asteroid may have a rotation period of 16 hours.
6433 Enya, provisional designation 1978 WC, is a stony background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 18 November 1978, by Czech astronomer Antonín Mrkos at the Kleť Observatory in the Czech Republic. It was named for Irish musician Enya.
1151 Ithaka, provisional designation 1929 RK, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in 1929, and later named for the Greek island of Ithaca.
1159 Granada, provisional designation 1929 RD, is a dark background asteroid and relatively slow rotator from the inner regions of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 2 September 1929, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named for the Spanish city and province of Granada.
(9928) 1981 WE9, provisional designation 1981 WE9, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 16 November 1981, by astronomers at Perth Observatory in Bickley, Australia.
6349 Acapulco, provisional designation 1995 CN1, is a dark Adeonian asteroid from the middle region of the asteroid belt, approximately 22 kilometers in diameter.
11277 Ballard, provisional designation 1988 TW2, is a Phocaea asteroid from the inner regions of the asteroid belt, approximately 6.3 kilometers (3.9 miles) in diameter. It was discovered on 8 October 1988, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The assumed S-type asteroid has a rotation period of at least 10 hours. It was named for American marine scientist Robert Ballard.
1651 Behrens, provisional designation 1936 HD, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. Discovered by Marguerite Laugier in 1936, it was named after Johann Behrens.
1991 Darwin, provisional designation 1967 JL, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter.
2571 Geisei, provisional designation 1981 UC, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered by Japanese astronomer Tsutomu Seki at Geisei Observatory on 23 October 1981, and named for the Japanese village of Geisei.
2126 Gerasimovich, provisional designation 1970 QZ, is a stony background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1970, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after Russian astronomer Boris Gerasimovich.
2324 Janice, provisional designation 1978 VS4, is a dark background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 7 November 1978, by American astronomers Eleanor Helin and Schelte Bus at the Palomar Observatory in California. The asteroid was named for Janice Cline at Caltech. The presumably C-type asteroid has a rotation period of 23.2 hours.
5385 Kamenka, provisional designation 1975 TS3, is a background asteroid from the outer regions of the asteroid belt, approximately 16 kilometers (10 miles) in diameter. It was discovered on 3 October 1975, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. The presumed C-type asteroid has a rotation period of 6.68 hours. It was named for the Ukrainian town of Kamianka.
4944 Kozlovskij, provisional designation 1987 RP3, is a carbonaceous Witt asteroid from the central regions of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. It was discovered on 2 September 1987, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean Peninsula. The asteroid was named for Russian opera singer Ivan Kozlovsky.
1383 Limburgia, provisional designation 1934 RV, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 23 kilometers in diameter. It was discovered on 9 September 1934, by Dutch astronomer Hendrik van Gent at the Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It is named for the Dutch province Limburg.
1405 Sibelius, provisional designation 1936 RE, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 12 September 1936, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. The asteroid was named after composer Jean Sibelius.
3823 Yorii, provisional designation 1988 EC1, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 11 kilometers in diameter.
4760 Jia-xiang, provisional designation 1981 GN1, is a background asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 1 April 1981, by astronomers at Harvard University's Oak Ridge Observatory in Massachusetts, United States. The presumed stony S-type asteroid was named after Chinese astronomer Zhang Jiaxiang. It has a rotation period of 14.96 hours.
15224 Penttilä, provisional designation 1985 JG, is a dark background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 15 May 1985, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station in Arizona, United States. The likely elongated asteroid has a rotation period of 4.4 hours. It was named after planetary scientist Antti Penttilä at the University of Helsinki.
