(52457) Enquist
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Asteroid (52457) Enquist |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Asteroid family | Astraea family |
| Major semi-axis | 2.5705 AU |
| eccentricity | 0.2287 |
| Perihelion - aphelion | 1.9826 AU - 3.1584 AU |
| Inclination of the orbit plane | 5.7210 ° |
| Length of the ascending node | 92.3860 ° |
| Argument of the periapsis | 298.2605 ° |
| Time of passage of the perihelion | March 14, 2019 |
| Sidereal period | 4.12 a |
| Mean orbital velocity | 18.33 km / s |
| Physical Properties | |
| Medium diameter | 7.983 (± 0.050) km |
| Albedo | 0.045 (± 0.006) |
| Absolute brightness | 14.5 mag |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | January 2, 1995 |
| Another name | 1995 AE 4 , 1969 VJ 2 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(52457) Enquist is an asteroid located in the central main belt . It was discovered on January 2, 1995 by the Belgian astronomer Eric Walter Elst at the Schmidt telescope of the French Observatoire de Calern near Grasse ( IAU code 010). The asteroid had already been sighted on November 15, 1969 under the provisional designation 1969 VJ 2 at the Crimean Observatory in Nautschnyj .
The asteroid is part of the Astraea family, a group of asteroids named after (5) Astraea .
The mean diameter of (52457) Enquist was calculated to be 7.983 (± 0.050) kilometers and the albedo to be 0.045 (± 0.006).
(52457) Enquist was named on September 9, 2014 after the Dutch writer and poet Anna Enquist (* 1945). Her first novel Das Meisterstück from 1994 was particularly highlighted in the dedication .
Web links
- (52457) Enquist in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (52457) Enquist in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances by (52457) Enquist according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (52457) Enquist at the IAU Minor Planet Center (English)
- ↑ The family affiliation of (52457) Enquist in the AstDyS-2 database (English)