622 Esther is a minor planet orbiting the Sun.
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] |
Alternative designations | 1906 WP |
Minor planet category | 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) |
Semi-major axis | 2.4156 AU (361.37 Gm) |
Eccentricity | 0.24189 |
Orbital period (sidereal) | 3.75 yr (1371.3 d) |
Mean anomaly | 93.681° |
Mean motion | 0° 15m 45.072s / day |
Inclination | 8.6435° |
Longitude of ascending node | 142.046° |
Argument of perihelion | 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 |
Sidereal rotation period | 47.5 h (1.98 d) |
Spectral type | S-type asteroid |
Absolute magnitude (H) | 10.3 |
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]
| |
---|---|
|
Small Solar System bodies | |||||||
---|---|---|---|---|---|---|---|
Minor planets |
| ||||||
Comets |
| ||||||
Other |
|
![]() | This article about an S-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |