(189004) Capys
Asteroid (189004) Capys |
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Properties of the orbit ( animation ) | |
Orbit type | Jupiter Trojan (L 5 ) |
Major semi-axis | 5.1925 AU |
eccentricity | 0.1460 |
Perihelion - aphelion | 4.4343 AU - 5.9507 AU |
Inclination of the orbit plane | 17.0963 ° |
Length of the ascending node | 27.6508 ° |
Argument of the periapsis | 334.6217 ° |
Sidereal period | 11.83 a |
Physical Properties | |
Absolute brightness | 13.4 mag |
history | |
Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
Date of discovery | October 16, 1977 |
Another name | 3184 T-3 , 2001 UY 186 |
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. |
(189004) Capys is an asteroid belonging to the group of Jupiter Trojans . This describes asteroids that orbit the sun on the Lagrange points on the orbit of the planet Jupiter . It is assigned to the Lagrange point L 5 , that is, (189004) Capys follows Jupiter in its orbit around the sun by 60 °.
The asteroid was discovered on October 16, 1977 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery took place during the 3rd Trojan survey, during which Tom Gehrels surveyed field plates recorded by the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , 17 years after the start of the Palomar-Leiden- Surveys .
(189004) Capys was named after Kapys , the son of Assarakos , father of the Anchises and grandfather of Aeneas . Kapys was one of the Trojans who believed the wooden horse at the gates of Troy to be a trap. The naming took place on December 12th, 2008. In the case of the asteroids, trailing Trojans are named after Trojan heroes.
Web links
- (189004) Capys in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (189004) Capys in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (189004) Capys according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)