603 Timandra
Timandra (minor planet designation: 603 Timandra) is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on February 16, 1906, in Taunton, Massachusetts.
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 16 February 1906 |
| Designations | |
MPC designation | (603) Timandra |
| Pronunciation | /tɪˈmændrə/ |
Alternative designations | 1906 TJ |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.08 yr (40205 d) |
| Aphelion | 2.9809 AU (445.94 Gm) |
| Perihelion | 2.0947 AU (313.36 Gm) |
Semi-major axis | 2.5378 AU (379.65 Gm) |
| Eccentricity | 0.17460 |
Orbital period (sidereal) | 4.04 yr (1476.7 d) |
Mean anomaly | 87.1291° |
Mean motion | 0° 14m 37.644s / day |
| Inclination | 8.0265° |
Longitude of ascending node | 343.455° |
| 159.764° | |
| Physical characteristics | |
Mean radius | 6.865±0.45 km |
Synodic rotation period | 41.79 h (1.741 d) |
| 0.1354±0.019 | |
| 11.8 | |
Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2010 gave a light curve with a long rotation period of 41.79 ± 0.02 hours and a brightness variation of 0.10 ± 0.02 in magnitude.
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