205 Martha
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Discovery | |
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Discovered by: | Johann Palisa |
Discovery date: | October 13, 1879 |
Orbital characteristics | |
Epoch 30 January, 2005 (JD 2453400.5) | |
Aphelion | 430.602 Gm (2.878 AU) |
Perihelion: | 400.314 Gm (2.676 AU) |
Semi-major axis: | 415.458 Gm (2.777 AU) |
Eccentricity: | 0.036 |
Orbital period: | 1690.412 d (4.63 a) |
Avg. orbital speed: | 17.87 km/s |
Mean anomaly: | 29.923° |
Inclination: | 10.695° |
Longitude of ascending node: | 212.069° |
Argument of perihelion: | 171.423° |
Physical characteristics | |
Dimensions: | 81.0 km |
Mass: | unknown |
Mean density: | unknown |
Equatorial surface gravity: | unknown |
Escape velocity: | unknown |
Rotation period: | 9.637 h |
Albedo: | 0.054 |
Temperature: | unknown |
Spectral type: | C |
Absolute magnitude: | 9.23 |
205 Martha is a big Main belt asteroid. It is a dark, primitive carbonaceous C-type asteroid.
It was found by Johann Palisa on October 13, 1879 in Pola and was named after Martha, a woman in the New Testament.
[change] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Parameters
- Asteroid Albedo Compilation
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204 Kallisto | 205 Martha | 206 Hersilia
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Near-Earth asteroids · Main belt · Jupiter Trojans · Neptune Trojans · Comets · Kuiper belt · Oort cloud |