(11836) Eileen ( lat. Eileen ) - an asteroid belonging to the group of asteroids crossing the orbit of Mars , which was discovered on February 5, 1986 by American astronomers Carolyn Shoemaker and Eugene Shoemaker at the Palomar Observatory and named after the American astronaut Eileen Collins [1] .
- Orbit of the asteroid Aileen and its position in the solar system
| (11836) Eileen | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Carolyn Shoemaker , Eugene Shoemaker |
| Place of discovery | Palomar |
| Discovery date | February 5, 1986 |
| Eponym | Eileen Collins |
| Alternative notation | 1986 CB ; 1988 PJ |
| Category | Mars Crossers |
| Orbital characteristics | |
| Age of July 31, 2016 JD 2457600.5 | |
| Eccentricity ( e ) | 0.3524777 |
| Semimajor axis ( a ) | 350.804 million km (2,3449828 AU ) |
| Perihelion ( q ) | 227.154 million km (1,5184287 AU) |
| Aphelion ( Q ) | 474.455 million km (3.1715369 AU) |
| Circulation Period ( P ) | 1311.62 days (3.591 g. ) |
| Average orbital speed | 18.83 km / s |
| Inclination ( i ) | 22.46639 ° |
| Longitude node (Ω) | 131.76695 ° |
| Perihelion Argument (ω) | 289.73965 ° |
| Median Anomaly ( M ) | 217.61427 ° |
| physical characteristics | |
| Diameter | 5 - 11 km |
| Rotation period | 8.810 h |
| Apparent magnitude | 19.56 m (current) |
| Absolute magnitude | 13.6 m |
| Current distance from the sun | 3.145 a. e. |
| Current distance from earth | 3,197 a. e. |
See also
- List of Asteroids ( 11801-11900 )
- Classifications of Minor Planets
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 770. - ISBN 3-540-00238-3 .