(6422) Akagi
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Asteroid (6422) Akagi |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Asteroid family | Eunomia family |
| Major semi-axis | 2.6259 AU |
| eccentricity | 0.1507 |
| Perihelion - aphelion | 2.2301 AU - 3.0216 AU |
| Inclination of the orbit plane | 14.6202 ° |
| Length of the ascending node | 126.5149 ° |
| Argument of the periapsis | 167.4743 ° |
| Time of passage of the perihelion | December 26, 2016 |
| Sidereal period | 4.26 a |
| Mean orbital velocity | 18.39 km / s |
| Physical Properties | |
| Medium diameter | 9.084 (± 0.227) km |
| Albedo | 0.257 (± 0.057) |
| Absolute brightness | 12.6 mag |
| history | |
| Explorer | Takao Kobayashi |
| Date of discovery | February 7, 1994 |
| Another name | 1994 CD 1 , 1986 HH 11 , 1991 NQ 4 |
| 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. | |
(6422) Akagi is an asteroid of the main middle belt discovered on February 7, 1994 by Japanese amateur astronomer Takao Kobayashi at the Oizumi Observatory ( IAU code 411). The asteroid had already been sighted on April 29, 1986 under the provisional designation 1986 HH 11 (corrected from 1986 GN) at the Palomar Mountain Observatory and on July 8, 1991 (1991 NQ 4 ) at the La Silla Observatory in Chile .
The mean diameter of (6422) Akagi was calculated to be about 9 kilometers, the albedo to be 0.257 (± 0.057).
The asteroid belongs to the Eunomia family, a group named after (15) Eunomia , to which probably five percent of the asteroids in the main belt belong.
According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (6422) Akagi assumed a bright surface, so it could, roughly speaking, be around trade an S asteroid . The albedo of 0.257 (± 0.057) also indicates a rather light surface.
(6422) Akagi was named on January 6, 2003 after the stratovolcano Akagi , which, like the Oizumi observatory, is located in Gunma prefecture .
Web links
- (6422) Akagi in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (6422) Akagi 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 by (6422) Akagi according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (6422) Akagi at the IAU Minor Planet Center (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ 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)