214 Aschera
_Aschera.png) 3D convex shape model of 214 Aschera | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 29 February 1880 |
| Designations | |
| (214) Aschera | |
| Pronunciation | /əˈʃɪərə/[1] |
| A880 DB, 1903 SE 1947 BP, 1948 JE 1949 QG2, 1949 SX1 1950 XH, 1953 OO | |
| Main belt | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 136.09 yr (49707 d) |
| Aphelion | 2.6938 AU (402.99 Gm) |
| Perihelion | 2.5279 AU (378.17 Gm) |
| 2.6108 AU (390.57 Gm) | |
| Eccentricity | 0.031762 |
| 4.22 yr (1540.9 d) | |
Average orbital speed | 18.43 km/s |
| 167.065° | |
| 0° 14m 1.068s / day | |
| Inclination | 3.4364° |
| 341.997° | |
| 131.579° | |
| Physical characteristics | |
| Dimensions | 23.16±1.0 km |
| 6.835 h (0.2848 d) | |
| 0.5220±0.048 | |
| E | |
| 9.2 | |
Aschera (minor planet designation: 214 Aschera) is a Main belt asteroid. It was discovered by Austrian astronomer Johann Palisa on February 29, 1880, in Pola and was named after the Sidonian goddess Asherah.
It is classified as a rare E-type asteroid and is fairly faint for an object of its type. The overall diameter is estimated to be 23 km and it has a geometric albedo of 0.52.[3] Photometric observations show a rotation period of 6.835 ± 0.001 hours with a brightness variation of 0.20 in magnitude. Using a tri-axial ellipsoidal model derived from light curve data, the overall shape of the asteroid is estimated to be a/b = 1.24 ± 0.12 and b/c = 1.83 ± 0.10, where a, b, c are the three axes of an ellipsoid.[4]
References
- ^ "Asherah". Merriam-Webster.com Dictionary.
- ^ "214 Aschera". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ Mishchenko, Michael I.; Rosenbush, Vera K. (2011), "Opposition Optical Phenomenon in Planetary Astrophysics: Observational Results", Polarimetric Detection, Characterization and Remote Sensing, Springer Science & Business Media, p. 417, ISBN 978-9400716353.
- ^ Shevchenko, V. G.; et al. (August 2003), "Rotation and photometric properties of E-type asteroids", Planetary and Space Science, 51 (9–10): 525–532, Bibcode:2003P&SS...51..525S, doi:10.1016/S0032-0633(03)00076-X.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 214 Aschera at AstDyS-2, Asteroids—Dynamic Site
- 214 Aschera at the JPL Small-Body Database
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