(11844) Ostwald
Asteroid (11844) Ostwald |
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Properties of the orbit ( animation ) | |
Orbit type | Main outer belt asteroid |
Asteroid family | Themis family |
Major semi-axis | 3.1733 AU |
eccentricity | 0.1655 |
Perihelion - aphelion | 2.6480 AU - 3.6987 AU |
Inclination of the orbit plane | 1.3297 ° |
Length of the ascending node | 41.1565 ° |
Argument of the periapsis | 259.1147 ° |
Sidereal period | 5.65 a |
Physical Properties | |
Absolute brightness | 13.0 likes |
history | |
Explorer | Eric Walter Elst |
Date of discovery | August 22, 1987 |
Another name | 1987 QW 2 , 1952 KF 1 , 1976 SV 3 , 1991 FO 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. |
(11844) Ostwald is an asteroid of the outer main belt , which was discovered on August 22, 1987 by the Belgian astronomer Eric Walter Elst at the La Silla Observatory of the European Southern Observatory in Chile ( IAU code 809). There had already been several unconfirmed sightings of the asteroid: on May 25, 1972 under the provisional designation 1952 KF 1 at the Argentine Observatorio Astronómico de La Plata and in September 1976 at the Crimean Observatory in Nautschnyj (1976 SV 3 ).
The asteroid belongs to the Themis family, a group of asteroids named after (24) Themis .
(11844) Ostwald was named on September 26, 2007 after the German-Baltic chemist Wilhelm Ostwald , who received the Nobel Prize for Chemistry in 1909 , "in recognition of his work on catalysis and for his fundamental studies of chemical equilibrium relationships and reaction rates ". A lunar crater in the northern lunar hemisphere was named after Wilhelm Ostwald as early as 1970 : lunar crater Ostwald .
Web links
- (11844) Ostwald in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (11844) Ostwald in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (11844) Ostwald according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (11844) Ostwald at the IAU Minor Planet Center (English)
- ↑ (11844) Ostwald in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- ^ The lunar crater Ostwald in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS