(369) Aeria ( Latin Aëria ) is a rather large asteroid of the main belt , belonging to the metal-rich spectral class M. It was discovered on July 4, 1893 by the French astronomer Alphonse Borelli at the Marseille Observatory and is named after the , one of the four fundamental principles of the world, according to ancient Greek philosophy [1] .
(369) Aria | |
---|---|
Asteroid | |
Opening | |
Discoverer | Alphonse Borelli |
Detection point | Marseilles |
Date of discovery | July 4, 1893 |
Alternative designations | 1893 AE ; 1949 MY; A894 WA |
Category | Main ring |
Orbital characteristics | |
The era of April 18, 2013 JD 2456400.5 | |
Eccentricity ( e ) | 0.0981482 |
Semi-axis ( a ) | 396.239 million km (2,6486933 a. E.) |
Perihelion ( q ) | 357.349 million km (2,3887288 a. E.) |
Afhelia ( Q ) | 435.129 million km (2,9086578 a. E.) |
Period of circulation ( P ) | 1574.512 days (4.311 g ) |
Average orbital speed | 18.257 km / s |
Inclination ( i ) | 12.70851 ° |
Ascending node longitude (Ω) | 94.28869 ° |
Perihelion Argument (ω) | 268.56774 ° |
Mean Anomaly ( M ) | 199.95649 ° |
physical characteristics | |
Diameter | 60.00 km |
Weight | 2.26⋅10 17 kg |
Density | 2,000 g / cm³ |
Acceleration of gravity on the surface | 0,0168 m / s² |
2nd cosmic speed | 0.0317 km / s |
Rotation period | 4,7781 h |
Spectral class | M |
Apparent magnitude | 13.17 m (current) |
Absolute magnitude | 8.52 m |
Albedo | 0.1919 |
Average surface temperature | 166 K (−107 ° C ) |
Current distance from the Sun | 2.39 a. e. |
Current distance from Earth | 2,097 a. e. |
See also
- List of asteroids ( 301-400 )
- Small Planet Classifications
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003. - P. 45. - ISBN 3-540-00238-3 .