(661) Clelia ( lat. Cloelia ) is an asteroid of the main belt , which belongs to the spectral class S and is a member of the Eos family [1] . It was discovered on February 22, 1908 by the American astronomer Joel Metcalf at the Taunton Observatory and is named after the legendary ancient Roman girl Clelia. [2]
(661) Clelia | |
---|---|
Asteroid | |
Opening | |
Discoverer | Joel metcalf |
Detection point | Taunton |
Date of discovery | February 22, 1908 |
Eponym | Clelia |
Alternative designations | 1908 CL ; 1929 CF; 1930 KC; 1936 RJ; 1950 HM |
Category | Main ring ( Eos Family ) |
Orbital characteristics | |
The era of May 23, 2014 JD 2456800.5 | |
Eccentricity ( e ) | 0.033827103293 |
Semi-axis ( a ) | 451.305 million km (3,016787201397 a. E.) |
Perihelion ( q ) | 436.039 million km (2,914738029122 a. E.) |
Afhelia ( Q ) | 466.571 million km (3.118836373672 a. E.) |
Period of circulation ( P ) | 1913,883 days (5.24 g ) |
Average orbital speed | 17,143 km / s |
Inclination ( i ) | 9.231488941367 ° |
Ascending node longitude (Ω) | 335.8311883220 ° |
Perihelion Argument (ω) | 180,2285085039 ° |
Mean Anomaly ( M ) | 99.07388131289 ° |
physical characteristics | |
Diameter | 40,081 km |
Rotation period | 5.536 h |
Spectral class | S |
Apparent magnitude | 15.1 m (current) |
Absolute magnitude | 9.7 m |
Albedo | 0.182 |
Current distance from the Sun | 3.03 aa. e. |
Current distance from Earth | 2.56 a. e. |
Tisserans parameter relative to Jupiter - 3.227.
See also
- List of asteroids ( 601-700 )
- Small Planet Classifications
- Asteroid family
Notes
- ↑ Veeder, GJ; Matson, DL; Owensby, PD & Gradie, JC (March 1995), Eos, Koronis, and Maria asteroids family: Infrared (JHK) photometry , vol. 114, p. 186–196 , DOI 10.1006 / icar.1995.1053
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003. - P. 65. - ISBN 3-540-00238-3 .