(2409) Chapman
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Asteroid (2409) Chapman |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2.2658 ± 0.0001 AU |
| eccentricity | 0.1915 ± 0.0004 |
| Perihelion - aphelion | 1.832 ± 0.0008 AU - 2.6996 ± 0.0001 AU |
| Inclination of the orbit plane | 3.5124 ± 0.004 ° |
| Length of the ascending node | 140.7528 ± 0.5565 ° |
| Argument of the periapsis | 207.9671 ± 0.5671 ° |
| Time of passage of the perihelion | July 12, 2020 |
| Sidereal period | 3.41 a ± 0.0655 d |
| Physical Properties | |
| Medium diameter | 8.696 ± 0.136 km |
| Albedo | 0.213 ± 0.045 |
| Absolute brightness | 12.7 mag |
| Spectral class | SMASSII: S. |
| history | |
| Explorer |
 Edward LG Bowell
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| Date of discovery | 17th October 1979 |
| Another name | 1979 UG ; 1931 PA; 1938 TA; 1975 JO; 1976 YR 7 ; 1977 AU 2 |
| 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. | |
(2409) Chapman ( 1979 UG ; 1931 PA ; 1938 TA ; 1975 JO ; 1976 YR 7 ; 1977 AU 2 ) is an approximately nine kilometers large asteroid of the main inner belt that was discovered on October 17, 1979 by the American astronomer Edward LG Bowell was discovered at Lowell Observatory , Anderson Mesa Station ( Anderson Mesa ) near Flagstaff , Arizona ( IAU code 688).
designation
(2409) Chapman was named after the American astronomer Clark R. Chapman , who works at the Planetary Science Institute in Tucson . He made important contributions to understanding the composition of asteroids, particularly the identification of their surface minerals, taxonomy and research into collisions.
See also
Web links
- (2409) Chapman in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (2409) Chapman in the Small-Body Database of the Jet Propulsion Laboratory .
Individual evidence
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 186 (English, 992 pp., Link.springer.com [ONLINE; accessed on August 10, 2019] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “1979 UG. Discovered 1979 Oct. 17 by E. Bowell at Anderson Mesa. "