(1404) Ajax ( Greek Αίας ) is the Trojan asteroid of Jupiter , moving at the Lagrange point L 4 , 60 ° ahead of the planet. It was discovered on August 17, 1936 by the German astronomer Karl Reinmouth and named after the Greek hero Ajax the Great , who, according to ancient Greek mythology , participated in the siege of Troy [1] .
- The orbit of the asteroid Ajax and its position in the solar system
| (1404) Ajax | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Karl Rainmouth |
| Place of discovery | Heidelberg |
| Discovery date | August 17, 1936 |
| Eponym | Ajax the Great |
| Alternative notation | 1936 QW |
| Category | Jupiter's Trojans ( L 4 ) |
| Orbital characteristics | |
| Age of August 27, 2011 JD 2455800.5 | |
| Eccentricity ( e ) | 0.11423 |
| Semimajor axis ( a ) | 793.19 million km (5,30215 AU ) |
| Perihelion ( q ) | 702.584 million km (4.69649 AU) |
| Aphelion ( Q ) | 883.796 million km (5.90781 AU) |
| Circulation Period ( P ) | 4459.4 days (12.209 g. ) |
| Average orbital speed | 12.893 km / s |
| Inclination ( i ) | 18.011 ° |
| Longitude node (Ω) | 332.974 ° |
| Perihelion Argument (ω) | 60,407 ° |
| Median Anomaly ( M ) | 52.369 ° |
| physical characteristics | |
| Diameter | 81.69 km |
| Weight | 5.7⋅10 17 kg |
| Density | 2,000 g / cm³ |
| Acceleration of free fall on the surface | 0.0228 m / s² |
| 2nd space speed | 0.0431 km / s |
| Apparent magnitude | 16.03 m (current) |
| Absolute magnitude | 9.00 m |
| Albedo | 0.0665 |
| Average surface temperature | 121 K (−152 ° C ) |
| Current distance from the sun | 5.189 a. e. |
| Current distance from earth | 4,216 a. e. |
See also
- List of asteroids ( 1401-1500 )
- Classifications of Minor Planets
- List of Trojan asteroids ("Greeks")
- List of Trojan asteroids (“Trojans”)
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 113. - ISBN 3-540-00238-3 .