(5559) Beategordon
Asteroid (5559) Beategordon |
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Properties of the orbit ( animation ) | |
Orbit type | Inner main belt asteroid |
Major semi-axis | 2.3854 AU |
eccentricity | 0.2298 |
Perihelion - aphelion | 1.8372 AU - 2.9337 AU |
Inclination of the orbit plane | 11.3147 ° |
Length of the ascending node | 92.3796 ° |
Argument of the periapsis | 177.7276 ° |
Time of passage of the perihelion | 23rd November 2019 |
Sidereal period | 3.68 a |
Mean orbital velocity | 19.03 km / s |
Physical Properties | |
Medium diameter | 7.621 (± 0.151) km |
Albedo | 0.277 (± 0.067) |
Rotation period | 14.971 (± 0.004) h |
Absolute brightness | 12.8 mag |
history | |
Explorer | Eleanor Helin |
Date of discovery | June 27, 1990 |
Another name | 1990 MV , 1942 JF, 1980 WA 2 , 1980 XG 2 |
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. |
(5559) Beategordon is an asteroid located in the inner main belt . It was discovered on June 27, 1990 by the American astronomer Eleanor Helin at the Palomar Observatory ( IAU code 675) in California . The asteroid had already been sighted on May 14 and June 13, 1942 under the provisional designation 1942 JF at the Union Observatory in Johannesburg , as well as on November 30 (1980 WA 2 ) and December 10, 1980 (1980 XG 2 ) at the Crimean Observatory in Nautschnyj .
The mean diameter of the asteroid was calculated to be 7.621 (± 0.151) kilometers and the albedo to be 0.277 (± 0.067). According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel subdivided all examined asteroids into C, S and V types (5559) Beategordon assigned to the S asteroids .
The asteroid's period of rotation was observed 133 times from April 27 to May 4, 2008 by Brian D. Warner at the Palmer Divide Observatory in Colorado . The light curve gave a rotation period of 14.971 (± 0.004) hours. The result was confirmed in 2009, 2015 and 2019.
(5559) Beategordon was named on November 8, 2019 after Beate Sirota Gordon (1923-2012), who was responsible for the equality of women in the Japanese constitution.
Web links
- (5559) Beategordon in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (5559) Beate Gordon in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances of (5559) Beategordon according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (5559) Beategordon at the IAU Minor Planet Center (English)
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)
- ↑ Brian D. Warner: ASTEROID LIGHTCURVE ANALYSIS AT THE PALMER DIVIDE OBSERVATORY: FEBRUARY - MAY 2008 . The Minor Planet Bulletin, Vol. 35, page 163, 2008 ( PDF , 484 kB; English)
- ↑ The Minor Planet Circulars of November 8, 2019, page 118218 (PDF, 6.3 MB; English)