(12651) Frenkel
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Asteroid (12651) Frenkel |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 3.0781 AU |
| eccentricity | 0.1211 |
| Perihelion - aphelion | 2.7054 AU - 3.4510 AU |
| Inclination of the orbit plane | 10.0329 ° |
| Length of the ascending node | 224.4717 ° |
| Argument of the periapsis | 163.4678 ° |
| Time of passage of the perihelion | November 27, 2020 |
| Sidereal period | 5.40 a |
| Physical Properties | |
| Absolute brightness | 13.9 likes |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | October 16, 1977 |
| Another name | 2268 T-3 , 1991 GB 8 |
| 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. | |
(12651) Frenkel is an asteroid located in the outer main belt , which was discovered on October 16, 1977 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery took place during the 3rd 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 , 17 years after the start of the Palomar-Leiden- Surveys .
The asteroid belongs to the Eos family, a group of asteroids, which typically have large semiaxes from 2.95 to 3.1 AU , bounded inward by the Kirkwood gap of the 7: 3 resonance with Jupiter , and orbital inclinations between 8 ° and 12 °. The group is named after the asteroid (221) Eos . The family is believed to have emerged from a collision more than a billion years ago. The ageless (not osculating ) orbital elements of (12651) Frenkel are almost identical with those of four smaller (when one of the absolute brightness emanates) asteroid: (33999) 2000 OG 4 , (79494) In 1998, FC 90 , (140091) 2001 SN 128 and (459709) 2013 PQ 34 .
(12651) Frenkel was named on May 29, 2018 after the Dutch theoretical chemist Daan Frenkel (* 1948).
Web links
- (12651) Frenkel in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (12651) Frenkel 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 (12651) Frenkel according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ The family affiliation of (12651) Frenkel in the AstDyS-2 database (English)
- ↑ David Vokrouhlický , Miroslav Brož , Alessandro Morbidelli , William Bottke , David Nesvorný , Daniel Lazzaro, Andy Rivkin: Yarkovsky footprints in the Eos family . (English, PDF ; 26 MB)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)