(18169) Amaldi
Asteroid (18169) Amaldi |
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Properties of the orbit ( animation ) | |
Orbit type | Main outer belt asteroid |
Major semi-axis | 3.1533 AU |
eccentricity | 0.1597 |
Perihelion - aphelion | 2.6497 AU - 3.6570 AU |
Inclination of the orbit plane | 10.0984 ° |
Length of the ascending node | 246.4071 ° |
Argument of the periapsis | 198.1843 ° |
Time of passage of the perihelion | September 27, 2018 |
Sidereal period | 5.60 a |
Physical Properties | |
Medium diameter | 23,311 km (± 4,444) |
Albedo | 0.033 (± 0.017) |
Absolute brightness | 12.5 mag |
history | |
Explorer | Vincenzo Silvano Casulli |
Date of discovery | August 20, 2000 |
Another name | 2000 QF , 1950 UA, 1984 WQ, 1998 KR 17 |
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. |
(18169) Amaldi is an asteroid of the main outer belt discovered by the Italian amateur astronomer Vincenzo Silvano Casulli on August 20, 2000 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 then province of Rome, today's metropolitan city of Rome capital . There had been sightings of the asteroid before: on October 17, 1950 under the provisional name 1950 UA at the Goethe Link Observatory in Indiana , on November 18 and 24, 1984 (1984 WQ) at the Anderson Mesa Station of the Lowell Observatory in Coconino County , Arizona and on May 22 and 24, 1998 (1998 KR 17 ) at the Lincoln Laboratory Experimental Test System in Socorro , New Mexico as part of the Lincoln Near Earth Asteroid Research (LINEAR) project.
In October 2006, Casulli tried to determine the asteroid's light curve . However, the data were too imprecise for a reliable statement.
(18169) Amaldi was named on April 6, 2012 after the Italian physicist Edoardo Amaldi (1908–1989), who worked with Enrico Fermi and, among other things, was the founder of the Istituto Nazionale di Fisica Nucleare and the first general director of CERN .
See also
Web links
- (18169) Amaldi in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (18169) Amaldi in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (18169) Amaldi according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (18169) Amaldi at the IAU Minor Planet Center (English)
- ↑ Light curve from (18169) Amaldi on obswww.unige.ch (French)
- ↑ After Enrico Fermi, the asteroid of the outer main belt (8103) was named Fermi in 1999 .
- ↑ In 2008 the asteroid of the middle main belt (15332) was named CERN after CERN .