(415) Palatia ( German Palatia ) is a main-belt asteroid that was discovered on February 7, 1896 by German astronomer Max Wolf at the Heidelberg Observatory and is named after a territorial entity within the Holy Roman Empire , now known as Kurpfalz [1] .
| (415) Palaty | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Max wolf |
| Detection point | Heidelberg |
| Date of discovery | February 7, 1896 |
| Eponym | Kurffalz |
| Alternative designations | 1896 CO ; 1954 MG; 1959 OF; A899 TB |
| Category | Main ring |
| Orbital characteristics | |
| The era of November 4, 2013 JD 2456600.5 | |
| Eccentricity ( e ) | 0.3012788 |
| Semi-axis ( a ) | 417.676 million km (2,7919916 a. E.) |
| Perihelion ( q ) | 291.839 million km (1,9508237 a. E.) |
| Afhelia ( Q ) | 543.513 million km (3,6331595 a. E.) |
| Period of circulation ( P ) | 1704 days (4.665 g. ) |
| Average orbital speed | 17.413 km / s |
| Inclination ( i ) | 8.17106 ° |
| Ascending node longitude (Ω) | 126.98684 ° |
| Perihelion Argument (ω) | 297.11523 ° |
| Mean Anomaly ( M ) | 143.65455 ° |
| physical characteristics | |
| Diameter | 76.34 km |
| Weight | 4.66⋅10 17 kg |
| Density | 2,000 g / cm³ |
| Acceleration of gravity on the surface | 0.0213 m / s² |
| 2nd cosmic speed | 0.0404 km / s |
| Rotation period | 20.73 h |
| Apparent magnitude | 14.86 m (current) |
| Absolute magnitude | 9.21 m |
| Albedo | 0.0628 |
| Average surface temperature | 166 K (−107 ° C ) |
| Current distance from the Sun | 3.47 a. e. |
| Current distance from Earth | 2,737 a. e. |
Orbit of the asteroid Palatia and its position in the Solar System
Held in 1975 at the Kitt-Peak Observatory at a wavelength of 10 μm, they gave too large a diameter value for this asteroid - 93 km, which is explained by the very low radiometric albedo 0.026. In composition, it occupies an intermediate position between the spectral classes D and P and, as is supposed, in its rocks it contains enstatite in a significant amount [2] .
See also
- List of asteroids ( 401-500 )
- Small Planet Classifications
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003. - P. 49. - ISBN 3-540-00238-3 .
- ↑ Morrison, D. & Chapman, CR (March 1976), 22 asteroids , vol. 204, p. 934-939 , DOI 10.1142 / 9789812834300_0469