(12276) IJzer
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Asteroid (12276) IJzer |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Major semi-axis | 2.6851 AU |
| eccentricity | 0.1446 |
| Perihelion - aphelion | 2.2968 AU - 3.0735 AU |
| Inclination of the orbit plane | 7.0222 ° |
| Length of the ascending node | 152.9914 ° |
| Argument of the periapsis | 230.5556 ° |
| Time of passage of the perihelion | May 24, 2021 |
| Sidereal period | 4.40 a |
| Mean orbital velocity | 18.08 km / s |
| Physical Properties | |
| Medium diameter | 5.883 km (± 0.282) |
| Albedo | 0.223 (± 0.038) |
| Absolute brightness | 13.5 likes |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | November 18, 1990 |
| Another name | 1990 WW 1 , 1992 DU 6 |
| 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. | |
(12276) IJzer is an asteroid of the central main belt , which was discovered on November 18, 1990 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809).
The mean diameter of the asteroid was calculated to be 5.883 km (± 0.282).
The asteroid is in a zone of 7-4-2 orbital resonance with Jupiter and Saturn . With two orbits of Saturn around the sun , Jupiter completes four and the asteroid completes seven orbits. According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (12276) IJzer assumed a light surface, so it could, roughly speaking, be around trade an S asteroid . The asteroid's albedo was calculated to be 0.223 (± 0.038).
(12276) IJzer was named on March 16, 2014 after the Yser , a coastal river in the border area between French and Belgian Flanders . "IJzer" is the Dutch name of the river.
Web links
- (12276) IJzer in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (12276) IJzer in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances by (12276) IJzer according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (12276) IJzer in the database of the "Asteroids - Dynamic Site" (AstDyS-2, 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)