(8439) Albellus
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Asteroid (8439) Albellus |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Themis family |
| Major semi-axis | 3.1559 AU |
| eccentricity | 0.1432 |
| Perihelion - aphelion | 2.7040 AU - 3.6078 AU |
| Inclination of the orbit plane | 0.9898 ° |
| Length of the ascending node | 56.6746 ° |
| Argument of the periapsis | 67.3368 ° |
| Sidereal period | 5.61 a |
| Mean orbital velocity | 16.76 km / s |
| Physical Properties | |
| Absolute brightness | 13.5 likes |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | 29th September 1973 |
| Another name | 2034 T-2 , 1996 TV 5 |
| 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. | |
(8439) Albellus is an asteroid of the outer main belt , which was discovered on September 29, 1973 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery was made during the 2nd Trojan survey, during which Tom Gehrels surveyed field plates recorded with the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , 13 years after the start of the Palomar-Leiden- Surveys .
The asteroid belongs to the Themis family, a group of asteroids named after (24) Themis . The ageless (not osculating ) orbital elements of (8439) Albellus are almost identical with those of the three smaller, when one of the absolute brightness starting from 14.5, 14.3 and 15.1 versus 13.5, asteroid (35449) 1998 CR 3 , (66128) 1998 SV 114 and (121581) 1999 VK 101 .
(8439) Albellus is named after the dwarf hawk , a species of duckbird whose scientific name is Mergellus albellus . At the time the asteroid was named on February 2, 1999, the population of the dwarf hawk, which occurs as a winter guest in the Netherlands , was endangered there.
Web links
- (8439) Albellus in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (8439) Albellus 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
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2012, 6th edition, page 638 (English)