622 Esther
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 13 November 1906 |
| Designations | |
| 1906 WP | |
| Orbital characteristics[1] | |
| 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) |
| Jupiter Tisserand parameter | 3.461 |
| Physical characteristics | |
| 47.5 h (1.98 d) | |
| 10.3 | |
|
| |
622 Esther is a minor planet orbiting the Sun.
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.[2]
References
- ↑ "622 Esther (1906 WP)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
- ↑ 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.
External links
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