_Asporina.png) 3D model based on lightcurve data | |
| Discovery | |
|---|---|
| Discovered by | A. Borrelly |
| Discovery date | 6 March 1885 |
| Designations | |
| MPC designation | (246) Asporina |
| Named after | Asporina |
| Alternative designations | A885 EA |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.96 yr (47834 d) |
| Aphelion | 2.98941 AU (447.209 Gm) |
| Perihelion | 2.39768 AU (358.688 Gm) |
| Semi-major axis | 2.69355 AU (402.949 Gm) |
| Eccentricity | 0.10984 |
| Orbital period (sidereal) | 4.42 yr (1614.7 d) |
| Average orbital speed | 18.14 km/s |
| Mean anomaly | 172.414° |
| Mean motion | 0° 13 22.638 / day |
| Inclination | 15.6259° |
| Longitude of ascending node | 162.347° |
| Argument of perihelion | 96.6218° |
| Physical characteristics | |
| Dimensions | 60.10±4.2 km |
| Synodic rotation period | 16.222 h (0.6759 d) |
| Geometric albedo | 0.1744±0.027 |
| Spectral type | R |
| Absolute magnitude (H) | 8.62 |
246 Asporina is a sizeable main-belt asteroid. It is classified as one of the few A-type asteroids.
It was discovered by A. Borrelly on 6 March 1885 in Marseilles and was named after Asporina, a goddess worshipped on Mount Asporenus, Asia Minor.
The spectrum of 246 Asporina reveals the strong presence of the mineral olivine, a relative rarity in the asteroid belt.
References
- "246 Asporina". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- Schmadel, Lutz (5 August 2003). Dictionary of Minor Planet Names. Springer Science & Business Media. ISBN 9783540002383 – via Google Books.
- Burbine, T. H.; et al. (July 2000), "The Nature of Olivine Asteroids", Meteoritics & Planetary Science, vol. 35, pp. A35, Bibcode:2000M&PSA..35R..35B, doi:10.1111/j.1945-5100.2000.tb01796.x.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 246 Asporina at AstDyS-2, Asteroids—Dynamic Site
- 246 Asporina at the JPL Small-Body Database
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