(29428) Ettoremajorana
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Asteroid (29428) Ettoremajorana |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Major semi-axis | 1.9548 AU |
| eccentricity | 0.0909 |
| Perihelion - aphelion | 1.7772 AU - 2.1324 AU |
| Inclination of the orbit plane | 22.3531 ° |
| Length of the ascending node | 187.4257 ° |
| Argument of the periapsis | 325.6002 ° |
| Time of passage of the perihelion | March 1, 2016 |
| Sidereal period | 2.73 a |
| Physical Properties | |
| Absolute brightness | 15.3 mag |
| history | |
| Explorer | Vincenzo Silvano Casulli |
| Date of discovery | March 31, 1997 |
| Another name | 1997 FM 1 |
| 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. | |
(29428) Ettoremajorana is an asteroid of the main inner belt discovered by the Italian amateur astronomer Vincenzo Silvano Casulli on March 31, 1997 at the Osservatorio di Colleverde ( IAU code 596). The observatory founded by Casulli was located from 1981 to 2003 in the city of Guidonia Montecelio in the metropolitan city of Rome .
The asteroid belongs to the Hungaria group . The 9: 2 orbital resonance with the planet Jupiter is characteristic of this group . The namesake for the Hungaria group is the asteroid (434) Hungaria . The solar orbit of (29428) Ettoremajorana is steeply inclined at more than 22 ° to the ecliptic of the solar system , another characteristic of Hungaria asteroids.
(29428) Ettoremajorana was named on June 2, 2015 after the Italian physicist Ettore Majorana (* 1906; lost 1938), a student of Enrico Fermis . Majorana contributed a lot to the theory of neutrinos .
See also
Web links
- (29428) Ettoremajorana in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (29428) Ettoremajorana in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances of (29428) Ettoremajoarana that according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (29428) Ettoremajorana at the IAU Minor Planet Center (English)
- ↑ After Enrico Fermi, the asteroid of the outer main belt (8103) was named Fermi in 1999 .