318 Magdalena
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| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | September 24, 1891 |
| Designations | |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 517.754 Gm (3.461 AU) |
| Perihelion | 437.837 Gm (2.927 AU) |
| Semi-major axis | 477.795 Gm (3.194 AU) |
| Eccentricity | 0.084 |
| Orbital period | 2084.803 d (5.71 a) |
| Average orbital speed | 16.67 km/s |
| Mean anomaly | 149.936° |
| Inclination | 10.641° |
| Longitude of ascending node | 161.671° |
| Argument of perihelion | 300.312° |
| Physical characteristics | |
| Dimensions | 72.7 km |
| Absolute magnitude (H) | 9.4 |
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318 Magdalena is a main belt asteroid orbiting the Sun. It was discovered by Auguste Charlois on September 24, 1891 in Nice.
On April 15, 2005 UT Magdalena occulted a 10.7 mag star in the constellation Scutum for observers along a path across Australia.
Measurements made with the IRAS observatory give a diameter of 106.08 ± 0.25 km and a geometric albedo of 0.03 ± 0.01. By comparison, the MIPS photometer on the Spitzer Space Telescope gives a diameter of 105.32 ± 11.11 km and a geometric albedo of 0.03 ± 0.01.[1]
References
- ↑ Ryan, Erin Lee et al. (April 2012), "The Kilometer-Sized Main Belt Asteroid Population as Revealed by Spitzer", eprint arXiv, arXiv:1204.1116, Bibcode:2012arXiv1204.1116R.
External links
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