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6216 San Jose
Main-belt asteroid
Main-belt asteroid
| Field | Value |
|---|---|
| minorplanet | yes |
| name | 6216 San Jose |
| background | #D6D6D6 |
| discovery_ref | |
| discoverer | S. J. Bus |
| discovery_site | Palomar Obs. |
| discovered | 30 September 1975 |
| mpc_name | (6216) San Jose |
| alt_names | 1975 SJ |
| 1989 VG | |
| named_after | San Jose |
| (City in California) | |
| mp_category | main-belt(middle) |
| background | |
| orbit_ref | |
| epoch | 23 March 2018 (JD 2458200.5) |
| uncertainty | 0 |
| observation_arc | 62.86 yr (22,961 d) |
| aphelion | 3.0346 AU |
| perihelion | 2.4719 AU |
| semimajor | 2.7533 AU |
| eccentricity | 0.1022 |
| period | 4.57 yr (1,669 d) |
| mean_anomaly | 68.316° |
| mean_motion | / day |
| inclination | 3.7717° |
| asc_node | 30.489° |
| arg_peri | 27.604° |
| mean_diameter | |
| albedo | |
| abs_magnitude | 13.0 |
1989 VG (City in California) background
6216 San Jose, provisional designation , is a background asteroid from the central regions of the asteroid belt, approximately 8 km in diameter. It was discovered on 30 September 1975, by American astronomer Schelte Bus at the Palomar Observatory. The asteroid was named for the city of San Jose in California.
Orbit and classification
San Jose is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.5–3.0 AU once every 4 years and 7 months (1,669 days; semi-major axis of 2.75 AU). Its orbit has an eccentricity of 0.10 and an inclination of 4° with respect to the ecliptic. The body's observation arc begins with a precovery taken at Palomar in April 1954.
Physical characteristics
San Jose spectral type is unknown. Based on its albedo (see below), it is likely a stony S-type asteroid. It has an absolute magnitude of 13.0.
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, San Jose measures 8.033 kilometers in diameter and its surface has an albedo of 0.208.
Rotation period
As of 2018, no rotational lightcurve of San Jose has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.
Naming
This minor planet was named for the city of San Jose, California, United States, for its long support of nearby Lick Observatory particularly in efforts to reduce light pollution. The official naming citation was published by the Minor Planet Center on 14 December 1997 (M.P.C. 31024).
References
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
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