(38442) Szilárd
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Asteroid (38442) Szilárd |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Koronis family |
| Major semi-axis | 2.9017 AU |
| eccentricity | 0.0741 |
| Perihelion - aphelion | 2.6868 AU - 3.1167 AU |
| Inclination of the orbit plane | 0.8899 ° |
| Length of the ascending node | 321.7341 ° |
| Argument of the periapsis | 359.5217 ° |
| Time of passage of the perihelion | 5th October 2018 |
| Sidereal period | 4.94 a |
| Physical Properties | |
| Medium diameter | 4.617 km (± 0.357) |
| Albedo | 0.208 (± 0.069) |
| Absolute brightness | 14.0 mag |
| history | |
| Explorer |
Krisztián Sárneczky Gyula M. Szabó |
| Date of discovery | September 24, 1999 |
| Another name | 1999 SU 6 , 2000 YR 54 |
| 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. | |
(38442) Szilárd is an asteroid of the main outer belt that was discovered on September 24, 1999 by the Hungarian amateur astronomer Krisztián Sárneczky and the Hungarian astronomer Gyula M. Szabó at the Piszkéstető observatory ( IAU code 461) in the northern Hungarian Mátra Mountains on behalf of the university of the sciences Szeged was discovered.
The mean diameter of the asteroid was calculated to be 4.617 km (± 0.357) and the albedo to be 0.208 (± 0.069).
The asteroid is a member of the Koronis family, a group of asteroids named after (158) Koronis . According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (38442) Szilárd assumed a bright surface, so it could, roughly speaking, be around trade an S asteroid .
The ageless (not osculating ) orbital elements of (38442) Sizlárd are almost identical with those of five smaller asteroids, when one of the absolute brightness of 15.0, 14.4, 14.7, 15.6 and 15.4 compared to 14 , 0 assumes: (40783) 1999 TT 28 , (50896) 2000 GS 43 , (59935) 1999 RR 187 , (198605) 2005 AM 19 and (208140) 2000 EJ 34 .
(38442) Szilárd was named on July 30, 2007 after the Hungarian -US nuclear physicist and molecular biologist Leó Szilárd . A lunar crater in the northern lunar hemisphere was named after Leo Szilárd in 1970 : lunar crater Szilard .
Web links
- (38442) Szilárd in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (38442) Szilárd in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (38442) Szilárd according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ^ 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)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ↑ The lunar crater Szilard in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS (English)