(311) Claudia
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Asteroid (311) Claudia |
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| A three-dimensional model of (311) Claudia based on her light curve | |
| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Asteroid family | Koronis family |
| Major semi-axis | 2.9 AU |
| eccentricity | 0.006 |
| Perihelion - aphelion | 2.883 AU - 2.917 AU |
| Inclination of the orbit plane | 3.2 ° |
| Length of the ascending node | 81.1 ° |
| Argument of the periapsis | 29 ° |
| Time of passage of the perihelion | 15th September 2012 |
| Sidereal period | 4 a 343 d |
| Mean orbital velocity | 17.5 km / s |
| Physical Properties | |
| Medium diameter | 24 km |
| Albedo | 0.3381 |
| Rotation period | 7 h 32 min |
| Absolute brightness | 9.89 likes |
| Spectral class | S. |
| history | |
| Explorer | A. Charlois |
| Date of discovery | June 11, 1891 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(311) Claudia is an asteroid of the main asteroid belt , which was discovered on June 11, 1891 by Auguste Charlois at the Observatory of Nice . The name was suggested to Charlois by the amateur astronomer Arthur Mee of Cardiff, Wales, in memory of Mee's wife Claudia.
(311) Claudia moves at a distance of 2.8726 ( perihelion ) to 2.9205 ( aphelion ) astronomical units in 4.9297 years around the sun . The orbit is 3.2250 ° inclined to the ecliptic , the orbital eccentricity is 0.0083.
(311) Claudia is 15 miles in diameter. It has a very light surface with an albedo of 0.338. It rotates around its own axis in around 7 hours and 32 minutes.
It belongs to the Koronis - asteroid family , a group of asteroids that after (158) Koronis is named. A group of astronomers, including Lucy d'Escoffier Crespo da Silva and Richard P. Binzel , used observations from 1998 to 2000 to determine the spin-vector orientation of these asteroids, including (311) Claudia. The joint work resulted in the development of 61 new individual rotating light curves to complement previously published observations.
See also
Individual evidence
- ^ Lutz D. Schmadel: Dictionary of Minor Planet Names . 5th edition. Springer, 2003, ISBN 3-540-00238-3 .
- ^ Mee, Arthur BP: Astronomical Notes . In: Weekly Mail . April 2, 1910, p. 11 ( org.uk [accessed October 20, 2018]).
- ↑ Slivan, SM, Binzel, RP, Crespo da Silva, LD, Kaasalainen, M., Lyndaker, MM, Krco, M .: Spin vectors in the Koronis family: comprehensive results from two independent analyzes of 213 rotation lightcurves . In: Icarus . No. 162 , 2003, p. 285-307 , bibcode : 2003Icar..162..285S .