(5638) Deikoon ( Latin Deikoon ) - a typical Trojan asteroid of Jupiter , moving at the Lagrange point L 5 , 60 ° behind the planet. The asteroid was discovered on September 10, 1988 by the American astronomers Carolyn and Eugene Shoemaker at the Palomar Observatory and named after one of the heroes of the Trojan War [2] .
| (5638) Daycoon | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Carolyn Shoemaker Eugene Shoemaker |
| Place of discovery | Palomar |
| Discovery date | September 10, 1988 |
| Alternative notation | 1988 TA 3 ; 1988 RJ 1 ; 1989 TO 2 |
| Category | Jupiter Trojans ( L 5 ) |
| Orbital characteristics | |
| Age of December 9, 2014 JD 2457000.5 | |
| Eccentricity ( e ) | 0.1054384 |
| Semimajor axis ( a ) | 786.611 million km (5.2581691 AU ) |
| Perihelion ( q ) | 703.672 million km (4.7037562 AU) |
| Aphelion ( Q ) | 869.55 million km (5.812582 AU) |
| Circulation Period ( P ) | 4,404.03 days (12.058 g. ) |
| Average orbital speed | 12.953 km / s |
| Inclination ( i ) | 10,90535 ° |
| Longitude node (Ω) | 156.03137 ° |
| Perihelion Argument (ω) | 91.64910 ° |
| Median Anomaly ( M ) | 162.19026 ° |
| Physical Characteristics [1] | |
| Diameter | 22 - 49 km |
| Rotation period | 9,137 h |
| Apparent magnitude | 17.99 m (current) |
| Absolute magnitude | 10,4 m |
| Current distance from the sun | 4.972 a. e. |
| Current distance from earth | 5.954 a. e. |
Orbit of the asteroid Deikoon and its position in the solar system
Photometric observations conducted in 1994 made it possible to obtain the light curves of this body, from which it followed that the period of rotation of the asteroid around its axis is 9.137 ± 0.003 hours, with the brightness changing as it rotates by more than 0.07 ± 0.01 m [ 1] .
See also
- List of Asteroids ( 5601-5700 )
- Classifications of Minor Planets
- List of Trojan asteroids ("Greeks")
- List of Trojan asteroids (“Trojans”)
Notes
- ↑ 1 2 Stefano Mottola1, Mario Di Martino, Anders Erikson, Maria Gonano-Beurer, Albino Carbognani, Uri Carsenty, Gerhard Hahn, Hans-Josef Schober, Felix Lahulla, Marco Delbò, and Claes-Ingvar Lagerkvist. ROTATIONAL PROPERTIES OF JUPITER TROJANS. I. LIGHT CURVES OF 80 OBJECTS . The American Astronomical Society . The Astronomical Journal (May 2011). Date of treatment December 30, 2014.
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 478. - ISBN 3-540-00238-3 .