(474) Prudence ( Latin Prudence ) is a large asteroid in the outer part of the main belt , which was discovered on February 13, 1901 by the German astronomer Max Wolf at the Heidelberg Observatory and named after one of the four cardinal virtues - prudence [1] .
| (474) Prudence | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Max Wolf |
| Place of discovery | Heidelberg |
| Discovery date | February 13, 1901 |
| Alternative notation | 1901 GD ; 1929 NG; 1933 OO; A902 NA; A910 RB |
| Category | Main ring |
| Orbital characteristics | |
| Age of November 4, 2013 JD 2456600.5 | |
| Eccentricity ( e ) | 0.2118493 |
| Semimajor axis ( a ) | 366.899 million km (2.4525661 AU ) |
| Perihelion ( q ) | 289.171 million km (1.9329917 AU) |
| Aphelion ( Q ) | 444.626 million km (2.9721405 AU) |
| Circulation Period ( P ) | 1402.909 days (3.841 g. ) |
| Average orbital speed | 18,803 km / s |
| Inclination ( i ) | 8.79799 ° |
| Longitude node (Ω) | 161.84416 ° |
| Perihelion Argument (ω) | 155.82508 ° |
| Median Anomaly ( M ) | 320.41236 ° |
| physical characteristics | |
| Diameter | 37.58 km |
| Weight | 5.56⋅10 16 kg |
| Density | 2,000 g / cm³ |
| Acceleration of free fall on the surface | 0.0105 m / s² |
| 2nd space speed | 0.0199 km / s |
| Rotation period | 8.572 h |
| Apparent magnitude | 16.66 m (current) |
| Absolute magnitude | 10.9 m |
| Albedo | 0,0720 |
| Average surface temperature | 179 K (−94 ° C ) |
| Current distance from the sun | 2,894 a. e. |
| Current distance from earth | 3,801 a. e. |
Orbit of an asteroid Prudence and its position in the solar system
See also
- List of asteroids ( 401-500 )
- 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. 53. - ISBN 3-540-00238-3 .