Joachim Schubart
Joachim Schubart (born August 5, 1928 in Berlin ) is a German astronomer .
Life
Joachim Schubart studied astronomy at the Humboldt University in Berlin and at the Babelsberg observatory and graduated in 1952 with a thesis on refraction and mean daily temperature curve as a graduate astronomer. In 1955 he received his doctorate with the thesis Investigations on periodic solutions in the three-body problem , then worked at the Sonneberg observatory , and since 1961 at the Astronomical Computing Institute in Heidelberg. He qualified as a professor in 1967 and has been the main observer since 1970.
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Schubart's work deals with specific questions in celestial mechanics . This mainly includes the study of the 2/3 resonance to Jupiter of the asteroids of the Hilda group . Together with P. Stumpff he was one of the first users of precise numerical integration and determination of the orbit of objects in the solar system using an Adams-Störmer-Predictor-Corrector method. With this he calculated an improved value for the mass of the earth, and for the first time the mass of small planets, (1) Ceres and (2) Pallas . Further investigations concern the near-Earth asteroids (1627) Ivar , (1221) Amor and (69230) Hermes . His predictions also made it possible, after a hundred years, to rediscover the comet Tempel-Tuttle , which produced the Leonids, with the discovery of observations back to 1366. In 1993, Schubart retired. Schubart is one of the best European experts on celestial mechanics,
In 1960 he discovered the small asteroid (2000) Herschel in Sonneberg , and in 1961 in Tautenburg (4724) Brocken together with C. Hoffmeister.
Honors
The small planet (1911) Schubart , discovered by Paul Wild in 1973 in Bern, was named after him (80 km diameter and 8 years orbital period), he leads an important subgroup of the Hilda type asteroids.
Web links
- Prof. Dr. Joachim Schubart (retired). on the website of Heidelberg University
- Joachim Schubart , member of the International Astronomical Union
- Work by Joachim Schubart (SAO / NASA Astrophysics Data System / ADS)
Individual evidence
- ^ Diploma thesis by J. Schubart
- ↑ Dissertation by J. Schubart
- ↑ AG membership directory
- ↑ Studies on the Hilda group
| personal data | |
|---|---|
| SURNAME | Schubart, Joachim |
| BRIEF DESCRIPTION | German astronomer |
| DATE OF BIRTH | August 5, 1928 |
| PLACE OF BIRTH | Berlin |