(858) El Diezar ( lat. El Djezair ) is an asteroid of the main asteroid belt belonging to the spectral class S. The asteroid was discovered on May 26, 1916 by the French astronomer in the Algiers Observatory and is named after the city of Algeria, in the suburbs of which located observatory. El Jezair - the French spelling of the Arabic name of Algeria [1] .
| (858) El Diezar | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | F. C |
| Detection point | Algerian Observatory |
| Date of discovery | May 26, 1916 |
| Eponym | Algeria (city) |
| Alternative designations | A908 UC; A911 HE, A916 KF |
| Category | Main ring |
| Orbital characteristics | |
| The Age of April 27, 2019 JD 2458600.5 | |
| Eccentricity ( e ) | 0.10252 |
| Semi-axis ( a ) | 420.412 million km (2,81028 a. E.) |
| Perihelion ( q ) | 377.311 million km (2,52217 a. E.) |
| Afhelia ( Q ) | 463.513 million km (3.09839 a. E.) |
| Period of circulation ( P ) | 1720.77 days (4.711 g ) |
| Average orbital speed | 17.72 km / s |
| Inclination ( i ) | 8,874 ° |
| Ascending node longitude (Ω) | 67.1933 ° |
| Perihelion Argument (ω) | 179.301 ° |
| Mean Anomaly ( M ) | 311.154 ° |
| physical characteristics | |
| Diameter | 22,519 km |
| Rotation period | 22.31 h |
| Spectral class | S |
| Apparent magnitude | 15.65 m (current) |
| Absolute magnitude | 10.3 m |
| Albedo | 0.375 |
| Current distance from the Sun | 2.566 a. e. |
| Current distance from Earth | 2,871 a. e. |
The asteroid became the first small planet to be named, consisting of more than one word.
Along with asteroids (68) Summer and (236) Honorius , he is a member of the Leto family, which is a small, well-defined group of bright stone asteroids, with a semi-major axis close to 2.8 AU. [2] [3]
See also
- List of asteroids (801-900)
Links
- ↑ Lutz D. Schmadel. Dictionary of Minor Planet Names . - Springer Science & Business Media, 2012-06-10. - 1458 s. - ISBN 9783642297182 .
- ↑ JPL Small-Body Database Browser . ssd.jpl.nasa.gov. The appeal date is July 22, 2019.
- ↑ AstDyS Unsolved . newton.spacedys.com. The appeal date is July 22, 2019.