789 Lena
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789 Lena
| Name | |
|---|---|
| Name | Lena |
| Designation | 1914 UU; 1970 CE |
| Discovery | |
| Discoverer | G. N. Neujmin |
| Discovery date | June 24, 1914 |
| Discovery site | Simeis |
| Orbital elements | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Eccentricity (e) | 0.148 |
| Semimajor axis (a) | 2.684 AU |
| Perihelion (q) | 2.288 AU |
| Aphelion (Q) | 3.081 AU |
| Orbital period (P) | 4.398 a |
| Inclination (i) | 10.803° |
| Longitude of the ascending node (Ω) | 232.837° |
| Argument of Perihelion (ω) | 42.261° |
| Mean anomaly (M) | 251.456° |
789 Lena is a medium-sized X-type asteroid orbiting in the Main belt near the Eunomia family. However, true family members have an S-type composition, so it is almost certainly an unrelated interloper. Lena has an unusual lightcurve[1], which indicates that it is either a very slow rotator (with period well over 22 hours), very irregular shaped, or both.
[edit] References
- ^ R. Gil-Hutton Research note: photometry of asteroids 359 Georgia and 789 Lena, Revista Mexicana de Astronomía y Astrofísica, Vol. 31, p. 143, (1995)
[edit] External links
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