(4159) Freeman

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Asteroid
(4159) Freeman
Properties of the orbit ( animation )
Orbit type Main belt asteroid
Major semi-axis 2.5502  AU
eccentricity 0.074
Perihelion - aphelion 2.361 AU - 2.7398 AU
Inclination of the orbit plane 15.19 °
Length of the ascending node 91.32 °
Sidereal period 4.07 a
Physical Properties
Medium diameter 17.31 km
Albedo 0.2822
Rotation period 4 h 24 min
Absolute brightness 10.8 mag
history
Explorer Eleanor Helin
Date of discovery April 5, 1989
Another name 1989 GK, 1937 NT, 1938 WH
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.

(4159) Freeman is a main belt asteroid discovered on April 5, 1989 by Eleanor Helin at the Palomar Observatory . The asteroid has a relatively bright surface with an albedo of around 0.28.

The asteroid was named after Ann Freeman , the executive secretary of the Seismological Laboratory at Caltech .

Individual evidence

  1. ^ Lutz D. Schmadel: Dictionary of minor planet names . Vol. 1. Springer, Berlin & New York 2003

Web links