(135) Hertha
Asteroid (135) Hertha |
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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.