214 Aschera

214 Aschera
	3D convex shape model of 214 Aschera
Discovery
Discovered by	Johann Palisa
Discovery date	29 February 1880
Designations
MPC designation	(214) Aschera
Pronunciation	/əˈʃɪərə/
Alternative designations	A880 DB, 1903 SE; 1947 BP, 1948 JE; 1949 QG2, 1949 SX1; 1950 XH, 1953 OO
Minor planet category	Main belt
Orbital characteristics
	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)
Semi-major axis	2.6108 AU (390.57 Gm)
Eccentricity	0.031762
Orbital period (sidereal)	4.22 yr (1540.9 d)
Average orbital speed	18.43 km/s
Mean anomaly	167.065°
Mean motion	0° 14m 1.068s / day
Inclination	3.4364°
Longitude of ascending node	341.997°
Argument of perihelion	131.579°
Physical characteristics
Dimensions	23.16±1.0 km
Synodic rotation period	6.835 h (0.2848 d)
Geometric albedo	0.5220±0.048
Spectral type	E
Absolute magnitude (H)	9.2

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. Merriam-Webster.
^ "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
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
214 Aschera at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about an asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it.

[1] "Asherah". Merriam-Webster.com Dictionary. Merriam-Webster.

[jpldata-2] "214 Aschera". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.

[Mishchenko_Rosenbush2011-3] 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.

[pss51_9_525-4] 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.

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