| Discovery [1] | |
|---|---|
| Discovered by | Harvard University |
| Discovery site | Oak Ridge Obs. |
| Discovery date | 3 November 1975 |
| Designations | |
| (4776) Luyi | |
Named after | Luyi (Chinese town) [1] |
| 1975 VD ·1982 RD2 1982 UU | |
| main-belt [1] [2] ·(inner) background [3] | |
| Orbital characteristics [2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 42.21 yr (15,418 d) |
| Aphelion | 2.8529 AU |
| Perihelion | 1.7765 AU |
| 2.3147 AU | |
| Eccentricity | 0.2325 |
| 3.52 yr (1,286 d) | |
| 40.564° | |
| 0° 16m 47.64s / day | |
| Inclination | 5.3929° |
| 3.2435° | |
| 349.13° | |
| Physical characteristics | |
| 3.645±0.045 km [4] | |
| 0.305±0.030 [4] | |
| 14.3 [2] | |
4776 Luyi, provisional designation 1975 VD, is a bright background asteroid from the inner regions of the asteroid belt, approximately 3.6 kilometers (2.2 miles) in diameter. It was discovered on 3 November 1975, by Harvard astronomers at the Oak Ridge Observatory in Massachusetts, United States. The asteroid was named for the Chinese town of Luyi, birthplace of Laozi who founded Taoism. [1] Luyi is also named after the son of Harvard astronomer Cheng-yuan Shao. [1]
Luyi is a non-family asteroid from the main belt's background population. [3] It orbits the Sun in the inner asteroid belt at a distance of 1.8–2.9 AU once every 3 years and 6 months (1,286 days; semi-major axis of 2.31 AU). Its orbit has an eccentricity of 0.23 and an inclination of 5° with respect to the ecliptic. [2] The body's observation arc begins with its first and official discovery observation at Oak Ridge. [1]
The asteroid has an absolute magnitude of 14.3. [2] Its spectral type is unknown. Based on its high albedo (see below), Luyi is a bright asteroid of the S-complex. As of 2018, no rotational lightcurve has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown. [2]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 3.645 kilometers in diameter and its surface has a high albedo of 0.30. [4]
This minor planet was named after a town in the eastern Henan province of China that was the birthplace of Laozi, founder of Taoism, because long-time participant in Harvard's minor-planet program, astronomer Cheng-yuan Shao (born 1927), came from that town (also see 1881 Shao). The asteroid is also named after his son, Luyi. [1]
The official naming citation was published by the Minor Planet Center on 21 November 1991 ( M.P.C. 19339). [5]
19367 Pink Floyd (provisional designation 1997 XW3) is a dark background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 3 December 1997, by European astronomers of the ODAS survey at the CERGA Observatory near Caussols, France. The asteroid was named after the English rock band Pink Floyd.
113390 Helvetia (provisional designation 2002 SU19) is a background asteroid from the inner regions of the asteroid belt, approximately 2.2 kilometers (1.4 miles) kilometers in diameter. It was discovered on 29 September 2002, by Swiss astronomer Markus Griesser at the Eschenberg Observatory in Winterthur, near Zürich, Switzerland. The presumed stony Florian asteroid was named after the Swiss national symbol, Helvetia.
99906 Uofalberta (provisional designation 2002 QV53) is a dark background asteroid from the outermost region of the asteroid belt, approximately 6.8 kilometers (4.2 miles) in diameter. It was discovered by Canadian amateur astronomer Andrew Lowe on 17 August 2002, from digitized photographic plates taken at the Palomar Observatory. It was named for the University of Alberta.
3567 Alvema, provisional designation 1930 VD, is a dark asteroid from the middle region of the asteroid belt, approximately 14 kilometers in diameter. It was discovered by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle, on 15 November 1930. It was named after the discoverer's three great-granddaughters Aline, Vérionique and Martine.
25000 Astrometria (provisional designation 1998 OW5) is a dark background asteroid from the outer regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 28 July 1998, by American astronomer Paul Comba at his Prescott Observatory in Arizona, United States. The asteroid was named in honor of the astronomical branch astrometry.
1707 Chantal, provisional designation 1932 RL, is a stony background asteroid from the Florian region in the inner asteroid belt, approximately 7.5 kilometers in diameter. It was discovered on 8 September 1932, by astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The S-type asteroid has a rotation period of at least 10 hours. It was named for Chantal, the niece of Belgian astronomer Georges Roland.
1710 Gothard, provisional designation 1941 UF, is a stony asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 20 October 1941, by Hungarian astronomer György Kulin at the Konkoly Observatory in Budapest, Hungary. It was later named after Hungarian amateur astronomer Jenő Gothard.
3137 Horky, provisional designation 1982 SM1, is a background asteroid from the inner regions of the asteroid belt, approximately 7 kilometers (4.3 miles) in diameter. It was discovered on 16 September 1982, by Czech astronomer Antonín Mrkos at the Kleť Observatory in the Czech Republic. The likely stony asteroid was named for a hill near the Czech village of Horky.
2173 Maresjev, provisional designation 1974 QG1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 28 kilometers (17 miles) in diameter. It was discovered on 22 August 1974, by Soviet–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named for Soviet war veteran Alexey Maresyev. The assumed C-type asteroid has a tentative rotation period of 11.6 hours.
145523 Lulin, provisional designation 2006 EM67, is a background asteroid from the central region of the asteroid belt, approximately 3.9 kilometers (2.4 miles) in diameter. It was discovered on 7 March 2006, by Taiwanese astronomers Hung-Chin Lin (林宏欽) and Ye Quanzhi (葉泉志) at Lulin Observatory in central Taiwan. It was named for the Lulin mountain and the observatory site.
2213 Meeus, provisional designation 1935 SO1, is a bright background asteroid from the inner regions of the asteroid belt, approximately 5 kilometers (3 miles) in diameter. It was discovered on 24 September 1935, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The presumed S-type asteroid has a short rotation period of 2.65 hours. It was named for Belgian amateur astronomer and meteorologist Jean Meeus.
2056 Nancy, provisional designation A909 TB, is a stony background asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 15 October 1909, by German astronomer Joseph Helffrich at Heidelberg Observatory in southwest Germany. The S-type asteroid has a tentative rotation period of 15.0 hours. It was named for Nancy Marsden, wife of British astronomer Brian G. Marsden.
1881 Shao, provisional designation 1940 PC or 1968 OO, is a background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers in diameter. It was discovered on 3 August 1940, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The presumed C-type asteroid has a rotation period of 7.45 hours. It was named for Chinese astronomer Cheng-yuan Shao.
5088 Tancredi, provisional designation 1979 QZ1, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 22 August 1979, by Swedish astronomer Claes-Ingvar Lagerkvist at ESO's La Silla Observatory in northern Chile. It is named after Uruguayan astronomer Gonzalo Tancredi.
2278 Götz, provisional designation 1953 GE, is a dark background asteroid from the inner regions of the asteroid belt's background population, approximately 12 kilometers in diameter. It was discovered on 7 April 1953, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The F/C-type asteroid was named after astronomer Paul Götz.
23131 Debenedictis (provisional designation 2000 AS128) is a bright background asteroid from the inner region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 5 January 2000, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for 2007-ISEF awardee Erika Alden DeBenedictis.
30718 Records (provisional designation 1955 RB1) is a dark background asteroid from the central region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 14 September 1955, by Indiana University's Indiana Asteroid Program at its Goethe Link Observatory near Brooklyn, Indiana, United States. It was the program's final discovery and was named after IU's astronomy staff member Brenda Records.
9524 O'Rourke, provisionally designated 1981 EJ5, is an asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in New South Wales, Australia. The asteroid was named after Laurence O'Rourke, a researcher at the European Space Astronomy Centre.
7648 Tomboles, provisional designation 1989 TB1, is a background asteroid from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 8 October 1989, by Japanese astronomers Yoshikane Mizuno and Toshimasa Furuta at the Kani Observatory in Kani, Japan. The asteroid was named after Scottish amateur astronomer Tom Boles.
30000 Camenzind (provisional designation 2000 AB138) is a very bright background asteroid from the inner region of the asteroid belt, approximately 2.6 kilometers (1.6 miles) in diameter. It was discovered on 4 January 2000, by astronomers of the Lincoln Near-Earth Asteroid Research program conducted at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States. The asteroid was named for 2014-ISTS awardee Kathy Camenzind.
