(462) Erifilah ( Greek: Ἐριφύλη ) is the asteroid of the main belt , which was discovered on October 22, 1900 by the German astronomer Max Wolf at the Heidelberg Observatory in Germany and named after Erifil , a character in ancient Greek mythology [1] .
| (462) Erifila | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Max Wolf |
| Place of discovery | Heidelberg |
| Discovery date | October 22, 1900 |
| Eponym | Erifila |
| Alternative notation | 1900 FQ ; 1927 CP; 1946 DB; 1948 OG; 1951 EA 3 ; 1957 KB; 1958 RR; 1959 WB; A896 YA; A907 BB |
| Category | Main ring ( Coronida family ) |
| Orbital characteristics | |
| Age of August 27, 2011 JD 2455800.5 | |
| Eccentricity ( e ) | 0.0837601 |
| Semimajor axis ( a ) | 429.758 million km (2,8727556 AU ) |
| Perihelion ( q ) | 393.762 million km (2,6321333 AU) |
| Aphelion ( Q ) | 465.755 million km (3.1133779 A.E.) |
| Circulation Period ( P ) | 1778.47 days (4.869 g. ) |
| Average orbital speed | 17.542 km / s |
| Inclination ( i ) | 3.19147 ° |
| Longitude node (Ω) | 105.31262 ° |
| Perihelion Argument (ω) | 251.47954 ° |
| Median Anomaly ( M ) | 337.15086 ° |
| physical characteristics | |
| Diameter | 35.63 km |
| Weight | 4.74⋅10 16 kg |
| Density | 2,000 g / cm³ |
| Acceleration of free fall on the surface | 0,0100 m / s² |
| 2nd space speed | 0.0188 km / s |
| Rotation period | 8.64 h |
| Spectral class | S |
| Apparent magnitude | 15.31 m (current) |
| Absolute magnitude | 9.23 m |
| Albedo | 0.2829 |
| Average surface temperature | 155 K (−118 ° C ) |
| Current distance from the sun | 3,093 a. e. |
| Current distance from earth | 3,713 a. e. |
The orbit of the asteroid Erifil and his 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. 52. - ISBN 3-540-00238-3 .