(6615) Plutarchus

from Wikipedia, the free encyclopedia
Asteroid
(6615) Plutarchus
Properties of the orbit ( animation )
Epoch:  4th September 2017 ( JD 2,458,000.5)
Orbit type Main belt asteroid
Major semi-axis 2.1695  AU
eccentricity 0.1265
Perihelion - aphelion 1.8951 AU - 2.4440 AU
Inclination of the orbit plane 1.7970 °
Length of the ascending node 129.3659 °
Argument of the periapsis 81.0574 °
Sidereal period 3.20 a
Mean orbital velocity 20.22 km / s
Physical Properties
Medium diameter 3.139 (± 0.045) km
Albedo 0.412 (± 0.066)
Rotation period 2.3247 h
Absolute brightness 14.7 mag
history
Explorer C. J. van Houten
I. v. Houten-Groeneveld
T. Gehrels
Date of discovery October 17, 1960
Another name 9512 PL , 1991 EW
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.

(6615) Plutarch is an asteroid of the main belt , which on 17 October 1960 by the Dutch astronomer Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory ( IAU code 675) in California was discovered.

The asteroid was named after the Greek writer and philosopher Plutarch (45–125).

Plutarchus has a moon that orbits it in approx. 40.2 hours at a mean distance of approx. 6 km. This moon, named S / 2007 (6615) 1 , was discovered between April 14 and 21, 2007 by astronomers Julian Oey , Donald P. Pray and Petr Pravec due to fluctuations in brightness.

See also

Web links