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214 Aschera

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214 Aschera
3D convex shape model of 214 Aschera
Discovery
Discovered byJohann Palisa
Discovery date29 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 arc136.09 yr (49707 d)
Aphelion2.6938 AU (402.99 Gm)
Perihelion2.5279 AU (378.17 Gm)
2.6108 AU (390.57 Gm)
Eccentricity0.031762
4.22 yr (1,540.9 d)
18.43 km/s
167.065°
0° 14m 1.068s / day
Inclination3.4364°
341.997°
131.579°
Physical characteristics
Dimensions23.16±1.0 km
6.835 h (0.2848 d)
0.5220±0.048
E
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. This minor planet is orbiting the Sun at a distance of 2.61 AU with a low eccentricity of 0.032 and an orbital period of 4.22 yr. The orbital plane is inclined at an angle of 3.44° to the plane of the ecliptic.[2]

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 data collected during September 2021 was used the generate a lightcurve for 214 Aschera. This showed a rotation period of 6.833±0.004 h with a brightness variation of 0.20 magnitude.[4] 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.[5]

References

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  1. ^ "Asherah". Merriam-Webster.com Dictionary. Merriam-Webster.
  2. ^ a b "214 Aschera". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
  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.
  4. ^ Farfan, Rafael Gonzalez; et al. (April 2022), "The Rotation Periods of 3 Juno, 28 Bellona, 129 Antigone, 214 Aschera, 237 Coelestina, 246 Asporina, 382 Dodona, 523 Ada, 670 Ottegebe, 918 Itha, 1242 Zambesia, 1352 Wawel, 1358 Gaika, 4155 Watanabe, and 6097 Koishikawa", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 49 (2): 136–140, Bibcode:2022MPBu...49..136F.
  5. ^ 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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