(225) Henrietta
Asteroid (225) Henrietta |
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Properties of the orbit ( animation ) | |
Orbit type | Outer main belt |
Major semi-axis | 3,389 AU |
eccentricity | 0.264 |
Perihelion - aphelion | 2.494 AU - 4.284 AU |
Inclination of the orbit plane | 20.9 ° |
Length of the ascending node | 197.1 ° |
Argument of the periapsis | 104.1 ° |
Time of passage of the perihelion | October 27, 2013 |
Sidereal period | 6 a 87 d |
Mean orbital velocity | 15.9 km / s |
Physical Properties | |
Medium diameter | approx. 96 km |
Albedo | 0.062 |
Rotation period | 7 h 22 min |
Absolute brightness | 8.72 likes |
Spectral class | F. |
history | |
Explorer | Johann Palisa |
Date of discovery | April 19, 1882 |
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. |
(225) Henrietta is an asteroid of the outer main asteroid belt , which on April 19, 1882 by Johann Palisa the Observatory of Wien was discovered. The asteroid was named after the wife of the astronomer Pierre Jules César Janssen .
Henrietta moves in an eccentric orbit around the Sun at a distance of 2.4945 ( perihelion ) to 4.2837 ( aphelion ) astronomical units in 6.24 years . The orbit is strongly inclined towards the ecliptic at 20.8725 ° , the orbit eccentricity is 0.2640.
Henrietta has an average diameter of about 96 kilometers. It has a dark surface with an albedo of 0.062. It rotates around its own axis in around 7 hours and 21 minutes.