(8772) Minutus
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Asteroid (8772) Minutus |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Hertha family |
| Major semi-axis | 2.3963 AU |
| eccentricity | 0.2345 |
| Perihelion - aphelion | 1.8343 AU - 2.9582 AU |
| Inclination of the orbit plane | 3.3630 ° |
| Length of the ascending node | 68.2194 ° |
| Argument of the periapsis | 262.2381 ° |
| Sidereal period | 3.71 a |
| Mean orbital velocity | 19.24 km / s |
| Physical Properties | |
| Absolute brightness | 14.0 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | 29th September 1973 |
| Another name | 4254 T-2 , 1988 VJ 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. | |
(8772) Minutus is an asteroid of the main inner belt that 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 Nysa group, a group of asteroids named after (44) Nysa (also called the Hertha family, after (135) Hertha ). The ageless (not osculating ) orbital elements of (8772) minutus are almost identical with those of the two smaller, when one of the absolute brightness starting from 16.6 and 17.3 versus 14.0, asteroids (208,707) 2002 JL 51 and ( 331581) 2001 SO 13 .
(8772) Minutus is after the Little Bittern named, whose scientific name Ixobrychus minutus is. At the time the asteroid was named on February 2, 1999, the bittern was on the Dutch and European Red List of Endangered Birds .
Web links
- (8772) Minutus in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (8772) Minutus 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 654 (English)