(9685) Korteweg

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Asteroid
(9685) Korteweg
Properties of the orbit ( animation )
Epoch:  4th September 2017 ( JD 2,458,000.5)
Orbit type Main belt asteroid
Asteroid family Hertha family
Major semi-axis 2.4235  AU
eccentricity 0.1318
Perihelion - aphelion 2.1041 AU - 2.7428 AU
Inclination of the orbit plane 1.2736 °
Length of the ascending node 258.6070 °
Argument of the periapsis 303.6102 °
Sidereal period 3.77 a
Mean orbital velocity 19.13 km / s
Physical Properties
Absolute brightness 14.5 mag
history
Explorer Cornelis Johannes van Houten ,
Ingrid van Houten-Groeneveld ,
Tom Gehrels
Date of discovery September 24, 1960
Another name 4247 PL , 1989 GC 2
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.

(9685) Korteweg is an asteroid of the main belt that was discovered on September 24, 1960 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery came about as part of the Palomar-Leiden survey , during which Tom Gehrels examined field plates recorded at the University of Leiden with the 120 cm Oschin Schmidt telescope of the Palomar observatory .

The celestial body belongs to the Nysa group, a group of asteroids named after (44) Nysa (also called the Hertha family, after (135) Hertha ).

The asteroid was named on July 5, 2001 after the Dutch mathematician Diederik Johannes Korteweg (1848–1941), who held a professorship for mathematics, mechanics and astronomy at the University of Amsterdam from 1881 to 1918 and, with his doctoral student Gustav de Vries, did the Korteweg de Vries equation developed.

See also

Individual evidence

  1. ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)

Web links