(261) Prymno
Asteroid (261) Prymno |
|
---|---|
Properties of the orbit ( animation ) | |
Orbit type | Inner main belt |
Major semi-axis | 2,332 AU |
eccentricity | 0.09 |
Perihelion - aphelion | 2.123 AU - 2.541 AU |
Inclination of the orbit plane | 3.6 ° |
Length of the ascending node | 96.7 ° |
Argument of the periapsis | 65 ° |
Time of passage of the perihelion | February 4, 2009 |
Sidereal period | 3 a 205 d |
Mean orbital velocity | 19.5 km / s |
Physical Properties | |
Medium diameter | 51 km |
Albedo | 0.1141 |
Rotation period | 8 h 0 min |
Absolute brightness | 9.44 mag |
Spectral class | B. |
history | |
Explorer | CHF Peters |
Date of discovery | October 31, 1886 |
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. |
(261) Prymno is an asteroid of the main asteroid belt , which on 31 October 1886 by Christian Heinrich Friedrich Peters at the observatory of Clinton ( United States was discovered).
The heavenly body was named after the nymph Prymno , a daughter of Oceanus and Tethys from Greek mythology .
Prymno moves at a distance of 2.1221 ( perihelion ) to 2.5407 ( aphelion ) astronomical units in 3.5599 years around the sun . The orbit is inclined 3.6352 ° to the ecliptic , the orbital eccentricity is 0.0898.
Prymno has a diameter of 51 kilometers. It has a relatively light surface with an albedo of 0.114. It rotates around its own axis in around 8 hours.