(2917) Sawyer Hogg
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Asteroid (2917) Sawyer Hogg |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt |
| Major semi-axis | 2.7953 ± 0.0001 AU |
| eccentricity | 0.1126 ± 0.0005 |
| Perihelion - aphelion | 2.4805 ± 0.0014 AU - 3.1101 ± 0.0001 AU |
| Inclination of the orbit plane | 12.8185 ± 0.0486 ° |
| Length of the ascending node | 348.6765 ± 0.1881 ° |
| Argument of the periapsis | 39.6143 ± 0.0261 ° |
| Time of passage of the perihelion | 18th August 2018 |
| Sidereal period | 4.67 a ± 0.1232 d |
| Physical Properties | |
| Medium diameter | 9.553 ± 0.117 km |
| Albedo | 0.404 ± 0.026 |
| Absolute brightness | 11.9 likes |
| Spectral class | SMASSII: S. |
| history | |
| Explorer |
 Edward LG Bowell
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| Date of discovery | 2nd September 1980 |
| Another name | 1980 RR |
| 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. | |
(2917) Sawyer Hogg ( 1980 RR ) is an approximately ten kilometers large asteroid of the main middle belt that was discovered on September 2, 1980 by the American astronomer Edward LG Bowell at the Lowell Observatory , Anderson Mesa Station ( Anderson Mesa ) near Flagstaff , Arizona ( IAU code 688) was discovered.
designation
(2917) Sawyer Hogg was named after the Canadian astronomer Helen Sawyer Hogg (1905-1993), who was a professor of astronomy at the University of Toronto and who was known for her research on globular clusters . She was president of the Royal Astronomical Society of Canada , the Canadian Astronomical Society, and the American Association of Variable Star Observers . For nearly 30 years she wrote a weekly astronomy column for the Toronto Star and directed a number of television programs for the Ontario Educational Television Authority . In 1976 she was promoted to Companions of the Order of Canada and received the Klumpke-Roberts Award from the Astronomical Society of the Pacific .
See also
Web links
- (2917) Sawyer Hogg in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (2917) Sawyer Hogg 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 September 22, 2019] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “1980 RR. Discovered 1980 Sept. 2 by E. Bowell at Anderson Mesa. "
| predecessor | asteroid | successor |
|---|---|---|
| (2916) Voronveliya | numbering | (2918) Salazar |