(135) Hertha
|
Asteroid (135) Hertha |
|
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Hertha family |
| Major semi-axis | 2.4295 AU |
| eccentricity | 0.2066 |
| Perihelion - aphelion | 1.9275 AU - 2.9315 AU |
| Inclination of the orbit plane | 2.3040 ° |
| Length of the ascending node | 343.7 ° |
| Argument of the periapsis | 340.4 ° |
| Time of passage of the perihelion | December 25, 2011 |
| Sidereal period | 3 a 287 d |
| Mean orbital velocity | 18.9 km / s |
| Physical Properties | |
| Medium diameter | 79.24 (± 2.0) km |
| Albedo | 0.1436 (± 0.007) |
| Rotation period | 8 h 24 min |
| Absolute brightness | 8.23 likes |
| Spectral class | M. |
| history | |
| Explorer | CHF Peters |
| Date of discovery | February 18, 1874 |
| 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. | |
(135) Hertha is an asteroid of the inner main asteroid belt , which was discovered on February 18, 1874 by Christian Heinrich Friedrich Peters .
The asteroid is named after the Nordic goddess Hertha .
Hertha moves between 1.9275 ( perihelion ) astronomical units to 2.9315 astronomical units ( aphelion ) in 3.78 years around the sun . The orbit is 2.304 ° inclined to the ecliptic , the orbital eccentricity is 0.207.
Hertha has a diameter of around 79 km. It has a bright, metal-rich surface with an albedo of 0.144. It rotates around its own axis in around 8 hours and 24 minutes.