(346) Germentarians ( fr. Hermentaria ) - a large asteroid of the main belt , which belongs to the bright spectral class S. It was discovered on November 25, 1892 by the French astronomer Auguste Charlois at the Nice Observatory and is named after the French community of located in the department of Puy de Dom Auvergne [1] .
| (346) Germain | |
|---|---|
| Opening | |
| Discoverer | Auguste Charlois |
| Detection point | Nice |
| Date of discovery | November 25, 1892 |
| Eponym | |
| Alternative designations | 1892 P |
| Category | Main ring |
| Orbital characteristics | |
| The Age of September 30, 2012 JD 2456200.5 | |
| Eccentricity ( e ) | 0.0995052 |
| Semi-axis ( a ) | 418.45 million km (2,7971644 a. E.) |
| Perihelion ( q ) | 376.812 million km (2,518832 a. E.) |
| Afhelia ( Q ) | 460.088 million km (3.0754968 a. E.) |
| Period of circulation ( P ) | 1708,738 days (4,678 g ) |
| Average orbital speed | 17.765 km / s |
| Inclination ( i ) | 8.75843 ° |
| Ascending node longitude (Ω) | 92.10839 ° |
| Perihelion Argument (ω) | 290,82680 ° |
| Mean Anomaly ( M ) | 254.91315 ° |
| physical characteristics | |
| Diameter | 106.52 km |
| Weight | 1.27⋅10 18 kg |
| Density | 2,000 g / cm³ |
| Acceleration of gravity on the surface | 0.0298 m / s² |
| 2nd cosmic speed | 0.0563 km / s |
| Rotation period | 28.43 h |
| Spectral class | S |
| Apparent magnitude | 12.57 m (current) |
| Absolute magnitude | 7.13 m |
| Albedo | 0.2189 |
| Average surface temperature | 161 K (−112 ° C ) |
| Current distance from the Sun | 2,672 a. e. |
| Current distance from Earth | 3,615 a. e. |
The orbit of the asteroid Germenment and its position in the solar system
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. 58. - ISBN 3-540-00238-3 .