26 Proserpina

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26 Proserpina
Discovery
Discovered by R. Luther
Discovery date May 5, 1853
Designations
Alternative names 1935 KK; 1954 WD1
Minor planet
category
Main belt
Epoch June 14, 2006 (JD 2453900.5)
Aphelion 431.898 Gm (2.887 AU)
Perihelion 362.816 Gm (2.425 AU)
Semi-major axis 397.357 Gm (2.656 AU)
Eccentricity 0.087
Orbital period 1581.184 d (4.33 a)
Average orbital speed 18.24 km/s
Mean anomaly 115.619°
Inclination 3.562°
Longitude of ascending node 45.884°
Argument of perihelion 193.120°
Physical characteristics
Dimensions 95.1 km
Mass 9.0×1017? kg
Mean density 2.0? g/cm³
Equatorial surface gravity 0.0266? m/s²
Escape velocity 0.0503? km/s
Rotation period 0.4417 d (10.60 h) [1]
Albedo 0.1955 [2]
Temperature ~166 K
Spectral type S
Absolute magnitude 7.5

26 Proserpina (pronounced /proˈsɚpɪnə/, Latin: Proserpi?na) is a Main belt asteroid.

It was discovered by R. Luther on May 5, 1853.

It is named after the Roman goddess Proserpina, the daughter of Ceres and the Queen of the Underworld.


[edit] References

  1. ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab
  2. ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab