(5026) Martes
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Asteroid (5026) Martes |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Martes family |
| Major semi-axis | 2.3777 AU |
| eccentricity | 0.2423 |
| Perihelion - aphelion | 1.8015 AU - 2.9538 AU |
| Inclination of the orbit plane | 4.2836 ° |
| Length of the ascending node | 304.7659 ° |
| Argument of the periapsis | 17.6285 ° |
| Sidereal period | 3.67 a |
| Mean orbital velocity | 19.32 km / s |
| Physical Properties | |
| Medium diameter | 8.967 ± 2.335 km |
| Albedo | 0.066 ± 0.072 |
| Rotation period | 4.4243 h |
| Absolute brightness | 13.9 likes |
| history | |
| Explorer | Antonin Mrkos |
| Date of discovery | August 22, 1987 |
| Another name | 1987 QL 1 , 1965 QE, 1976 QL, 1980 VA 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. | |
(5026) Martes is an asteroid of the main inner belt that was discovered on August 22, 1987 by the Czech astronomer Antonín Mrkos at the Kleť Observatory ( IAU code 046) near Český Krumlov . There had already been unconfirmed sightings on August 27, 1976 (1976 QL) and on November 6 and 10, 1980 (1980 VA 2 ) at the observatory on the purple mountain near Nanjing .
In an orbit study by Petr Pravec from 2010, who had also examined the light curve of (5026) Martes, it was assumed that the asteroid had the same body of origin as the asteroid 2005 WW 113 . According to Pravec, the two bodies form an asteroid pair separated 17,000 (± 2000) years ago. In a study from 2012, Adrián Galád assumes a point in time that was a long time ago.
(5026) Martes belongs to the Erigone family, a group of asteroids named after (163) Erigone . Within the Erigone family, (5026) Martes is the namesake of a separate subfamily. This subfamily also includes, for example, the asteroids (9619) Terrygilliam , (9879) Mammuthus , (19415) Parvamenon , (23011) Petach , (35270) Molinari , (37432) Piszkéstető , (121865) Dauvergne , (207585) Lubar and ( 274084) Baldone .
(5026) Martes is named after the pine marten ( Martes martes ) and stone marten ( Martes foina ), which can be observed in the forest around the Kleť observatory. The name was given by the International Astronomical Union (IAU) on May 4, 1999.
Web links
- (5026) Martes in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (5026) Martes in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
Individual evidence
- ↑ Observations by (5026) Martes on minorplanetcenter.net (English)
- ^ Adrián Galád: Effect of main belt perturbers on asteroid-pair age estimation . Astronomy & Astrophysics 548, A25 2012, pages 1f, 4 and 7 ( PDF , English)
- ↑ Database with the assignment of 12,487 asteroids to asteroid groups (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ↑ Entry of the asteroid on the website of the Kleť Observatory (English)