(2771) Polzunov
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Asteroid (2771) Polzunov |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt |
| Major semi-axis | 2.6782 ± 0.0001 AU |
| eccentricity | 0.2271 ± 0.0004 |
| Perihelion - aphelion | 2.0699 ± 0.001 AU - 3.2864 ± 0.0001 AU |
| Inclination of the orbit plane | 13.9568 ± 0.0514 ° |
| Length of the ascending node | 207.3824 ± 0.1753 ° |
| Argument of the periapsis | 116.632 ± 0.2047 ° |
| Time of passage of the perihelion | 18th October 2017 |
| Sidereal period | 4.38 a ± 0.1068 d |
| Physical Properties | |
| Medium diameter | 11.332 ± 0.189 km |
| Albedo | 0.218 ± 0.040 |
| Rotation period | ≈11.332 ± 3.498 h |
| Absolute brightness | 12.5 mag |
| history | |
| Explorer |
.svg){kind=small} / Lyudmyla Shuravlowa
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| Date of discovery | September 26, 1978 |
| Another name | 1978 SP 7 ; 1943 TG; 1981 EK 6 ; 1982 NB |
| 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. | |
(2771) Polzunov ( 1978 SP 7 ; 1943 TG ; 1981 EK 6 ; 1982 NB ) is an asteroid about eleven kilometers in size of the central main belt , which was discovered on September 26, 1978 by the Ukrainian (then: Soviet Union ) astronomer Lyudmyla Shuravlowa in the Crimea. Observatory (Nautschnyj branch) on the Crimean peninsula ( IAU code 095) was discovered.
designation
(2771) Polzunov was named after Iwan Iwanowitsch Polsunow (1728–1766) from the Russian Empire . He invented the first steam engine in what is now Russia and the first two-cylinder engine in the world.
See also
Web links
- (2771) Polzunov in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (2771) Polzunov 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 13, 2019] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “1978 SP 7 . Discovered 1978 Sept. 26 by LV Zhuravleva at Nauchnyj. "
| predecessor | asteroid | successor |
|---|---|---|
| (2770) Tsvet | numbering | (2772) Dugan |