(7399) Somme
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Asteroid (7399) Somme |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 2.2794 AU |
| eccentricity | 0.1983 |
| Perihelion - aphelion | 1.8275 AU - 2.7313 AU |
| Inclination of the orbit plane | 3.8636 ° |
| Length of the ascending node | 274.0533 ° |
| Argument of the periapsis | 120.3334 ° |
| Time of passage of the perihelion | 5th June 2017 |
| Sidereal period | 3.44 a |
| Physical Properties | |
| Medium diameter | 4.734 km (± 0.101) |
| Albedo | 0.238 (± 0.019) |
| Absolute brightness | 13.9 likes |
| history | |
| Explorer | Eric Walter Elst |
| Date of discovery | January 29, 1987 |
| Another name | 1987 BC 2 , 1965 UU, 1972 VH 1 , 1989 SV |
| 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. | |
(7399) Somme is an asteroid located in the main inner belt . It was discovered on January 29, 1987 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809). The asteroid had already been sighted on October 30, 1965 (1965 UU) at the Goethe Link Observatory in Indiana and on November 9, 1972 (1972 VH 1 ) at the Crimean Observatory in Nautschnyj .
With an albedo of 0.238 (± 0.019) (7399) Somme has a relatively bright surface for asteroids. According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (7399) Somme also assumed a bright surface, so roughly speaking it could be be an S-asteroid .
Mean solar distance ( major semi-axis ), eccentricity and inclination of the orbit plane of the asteroid roughly resemble the orbital data of the members of the Flora family, a large group of asteroids named after (8) Flora . Asteroids of this family move in a 4: 9 orbital resonance with the planet Mars around the sun . The group is also called the Ariadne family, after the asteroid (43) Ariadne .
(7399) Somme was named on September 9, 2014 after the river Somme in northern France .
Web links
- (7399) Somme in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (7299) Somme 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 (7299) Somme according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (7399) Somme 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)