(230) Athamantis

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Asteroid
(230) Athamantis
Properties of the orbit ( animation )
Orbit type Inner main belt
Major semi-axis 2.382  AU
eccentricity 0.062
Perihelion - aphelion 2.235 AU - 2.529 AU
Inclination of the orbit plane 9.4 °
Length of the ascending node 239.9 °
Argument of the periapsis 140.2 °
Time of passage of the perihelion September 23, 2011
Sidereal period 3 a 247 d
Mean orbital velocity 19.3 km / s
Physical Properties
Medium diameter 109 km
Albedo 0.1708
Rotation period 24 h 0 min
Absolute brightness 7.35 likes
Spectral class S.
history
Explorer LAC de Ball
Date of discovery September 3, 1882
Another name 1949 flat share
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(230) Athamantis is an asteroid of the asteroid belt that was discovered on September 3, 1882 by Leo Anton Carl de Ball at the Bothkamp observatory near Kiel . De Ball had actually wanted to observe the asteroid (12) Victoria that night .

The celestial body was named after Athamantis (or Helle ), the daughter of Athamas, king of Thebes , from Greek mythology . Since Athamantis was very "bright" at the time, this could have inspired de Ball to give the name.

Athamantis moves 2.2353 ( perihelion ) to 2.5293 ( aphelion ) astronomical units around the Sun in 3.6771 years . The orbit is inclined 9.4344 ° to the ecliptic , the orbital eccentricity is 0.0617.

Athamantis has a diameter of 109 kilometers. The asteroid has a relatively bright, silicate-rich surface with an albedo of 0.171. It rotates around its own axis in around 23 hours and 59 minutes.

See also