(85095) Hekla
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Asteroid (85095) Hekla |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Hungaria group |
| Major semi-axis | 1.9257 AU |
| eccentricity | 0.0816 |
| Perihelion - aphelion | 1.7687 AU - 2.0828 AU |
| Inclination of the orbit plane | 18.9677 ° |
| Length of the ascending node | 349.4085 ° |
| Argument of the periapsis | 112.9983 ° |
| Sidereal period | 2.67 a |
| Physical Properties | |
| Absolute brightness | 16.6 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | September 25, 1973 |
| Another name | 5192 T-2 , 1997 SQ 4 |
| 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. | |
(85095) Hekla is an asteroid of the main inner belt that was discovered on September 25, 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 Hungaria group . The 9: 2 orbital resonance with the planet Jupiter is characteristic of this group . The namesake for the Hungaria group is the asteroid (434) Hungaria . The solar orbit of (85095) Hekla is strongly inclined at more than 18 ° compared to the ecliptic of the solar system , another characteristic of Hungaria asteroids. Most Hungaria asteroids are spectroscopically E-asteroids , i.e. if they have a high albedo , i.e. a bright surface, they have a very high enstatite content in their composition . According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), however, a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (85095) Hekla assumed a dark surface, which could turn out to be after this rough analysis trade a C asteroid.
The timeless (non- osculating ) orbital elements of (85095) Hekla are almost identical to those of the possibly larger, if one assumes the absolute brightness of 16.4 versus 16.6, asteroids (173370) 2000 AX 152 .
(85095) Hekla was named after the Icelandic volcano Hekla on September 19, 2013 . The mountain is one of the three most active volcanoes in Iceland.
Web links
- (85095) Hekla in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (85095) Hekla 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 of (85095) Hekla according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)