(8592) Rubetra
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Asteroid (8592) Rubetra |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 2.2557 AU |
| eccentricity | 0.1320 |
| Perihelion - aphelion | 1.9579 AU - 2.5536 AU |
| Inclination of the orbit plane | 6.1891 ° |
| Length of the ascending node | 350.5789 ° |
| Argument of the periapsis | 241.4788 ° |
| Time of passage of the perihelion | 3rd January 2019 |
| Sidereal period | 3.39 a |
| Mean orbital velocity | 19.74 km / s |
| Physical Properties | |
| Medium diameter | 4.478 (± 0.843) km |
| Albedo | 0.114 (± 0.068) |
| Absolute brightness | 14.2 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | March 25, 1971 |
| Another name | 1188 T-1 , 1992 PR 3 |
| 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. | |
(8592) Rubetra is an asteroid of the inner main belt , which was discovered on March 25, 1971 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery took place during the 1st Trojan survey, during which Tom Gehrels surveyed field plates recorded by the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , eleven years after the start of the Palomar-Leiden- Surveys .
The mean diameter of the asteroid was calculated to be 4.478 (± 0.843) km , the albedo roughly 0.114 (± 0.068).
In a publication from 1995 (et al.), The Italian astronomer Vincenzo Zappalà defines an asteroid belonging to the Flora family, a large group of asteroids named after (8) Flora . Asteroids of this family move in a 4: 9 orbital resonance with the planet Mars around the sun . The group is also called the Ariadne family, after the asteroid (43) Ariadne .
(8592) Rubetra is named after the whinchat , whose scientific name is Saxicola rubetra . At the time the asteroid was named on February 2, 1999, the whinchat was on the Dutch Red List of Endangered Species . The first letters of the asteroids (8585) to (8600) form the phrase Per aspera ad astra .
Web links
- (8592) Rubetra in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (8592) rubetra 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
- ↑ Database with the assignment of 12,487 asteroids to asteroid groups (English)
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2012, 6th edition, page 654 (English)