85 Io

85 Io
Orbital characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)
Orbit type Main belt (Eunomia)
Semimajor axis 2.653 AU
Perihelion distance 2.141 AU
Aphelion distance 3.165 AU
Orbital period 4.32 years
Inclination 11.97°
Eccentricity 0.193
Physical characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)
Diameter 154.8 km
Rotation period 3 (http://charlie.psi.edu/pds/) 6.875 hours
Spectral class C
Abs. magnitude 7.61
Albedo 4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html) 0.067
History 2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)
Discoverer C. H. F. Peters, 1865

85 Io (eye'-oh) is a large and dark-colored Main belt asteroid. It is probably a primitive body composed of carbonates.

Like 70 Panopaea it orbits within the Eunomia asteroid family but it is most likely not related to the shattered parent body.

It was discovered by C. H. F. Peters on September 19, 1865 and named after Io, a lover of Zeus in Greek mythology.

An Ionian diameter of 178 kilometres was measured from an occultation of a star on December 10, 1995.

Io is also the name of the volcanic satellite of Jupiter.


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The minor planets
Vulcanoids | Main belt | Groups and families | Near-Earth objects | Jupiter Trojans
Centaurs | Trans-Neptunians | Damocloids | Comets | Kuiper belt | Oort cloud
(For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system)
(For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.)
de:Io (Asteroid)

es:(85) Ío

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