(205) Martha
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Asteroid (205) Martha |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2,778 AU |
| eccentricity | 0.034 |
| Perihelion - aphelion | 2.683 AU - 2.873 AU |
| Inclination of the orbit plane | 10.7 ° |
| Length of the ascending node | 211.9 ° |
| Argument of the periapsis | 173.9 ° |
| Time of passage of the perihelion | May 10, 2009 |
| Sidereal period | 4 a 230 d |
| Mean orbital velocity | 17.9 km / s |
| Physical Properties | |
| Medium diameter | 81 km |
| Albedo | 0.06 |
| Absolute brightness | 9.2 likes |
| Spectral class | C. |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | October 13, 1879 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(205) Martha is an asteroid of the main asteroid belt that was discovered by Johann Palisa on October 13, 1879 .
The asteroid was named after the biblical Martha , the sister of Lazarus in the New Testament.
Martha moves around the sun at a distance of 2.7 ( perihelion ) to 2.9 ( aphelion ) astronomical units in 4.6 years . The orbit is inclined 10.7 ° to the ecliptic , the orbital eccentricity is 0.04.
Martha is about 81 kilometers in diameter and has a geometric albedo of 0.06.