622 Esther

622 Esther
Discovery
Discovered by Joel Hastings Metcalf
Discovery site Taunton, Massachusetts
Discovery date 13 November 1906
Designations
MPC designation (622) Esther
Named after
 Esther
(biblical figure)[1]
1906 WP
main-belt · (inner)
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 109.40 yr (39959 d)
Aphelion 2.9999 AU (448.78 Gm)
Perihelion 1.8313 AU (273.96 Gm)
2.4156 AU (361.37 Gm)
Eccentricity 0.24189
3.75 yr (1371.3 d)
93.681°
0° 15m 45.072s / day
Inclination 8.6435°
142.046°
256.687°
Earth MOID 0.859795 AU (128.6235 Gm)
Jupiter MOID 2.48023 AU (371.037 Gm)
TJupiter 3.461
Physical characteristics[3]
Dimensions 40 × 24 × 24 km ± 26%
29±8 km
47.5 h (1.98 d)
S-type asteroid
10.3

    622 Esther is a minor planet orbiting the Sun.

    The asteroid is named after the biblical figure Esther.[1]

    In 2001, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.11 AU. The resulting data yielded an effective diameter of 29 ± 8 km.[3]

    References

    1. 1 2 Schmadel, Lutz D.: Dictionary of Minor Planet Names. — Fifth Revised and Enlarged Edition. — B., Heidelberg, N. Y.: Springer, 2003. — P. 63. — ISBN 3-540-00238-3
    2. ↑ "622 Esther (1906 WP)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
    3. 1 2 Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999 2003" (PDF), Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018, retrieved 2015-04-14.


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