Discovered by Joel Hastings Metcalf Alternative names 1906 WP Aphelion 2.9999 AU (448.78 Gm) Discovered 13 November 1906 Spectral type S-type asteroid Discovery site Taunton observatory | Discovery date 13 November 1906 Observation arc 109.40 yr (39959 d) Perihelion 1.8313 AU (273.96 Gm) Orbits Sun Discoverer Joel Hastings Metcalf Asteroid group Asteroid belt | |
Similar 528 Rezia, 625 Xenia, 540 Rosamunde, 441 Bathilde, 509 Iolanda | ||
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.
References
622 Esther Wikipedia(Text) CC BY-SA