(2983) Poltava
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Asteroid (2983) Poltava |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Major semi-axis | 2.8487 AU |
| eccentricity | 0.0588 |
| Perihelion - aphelion | 2.6813 AU - 3.0162 AU |
| Inclination of the orbit plane | 4.2710 ° |
| Length of the ascending node | 247.7519 ° |
| Argument of the periapsis | 85.7250 ° |
| Time of passage of the perihelion | January 31, 2020 |
| Sidereal period | 4.81 a |
| Mean orbital velocity | 17.65 km / s |
| Physical Properties | |
| Medium diameter | 30.690 km (± 0.178) |
| Albedo | 0.072 (± 0.005) |
| Rotation period | 8.865 h (± 0.003) |
| Absolute brightness | 11.4 mag |
| history | |
| Explorer | Nikolai Tschernych |
| Date of discovery | 2nd September 1981 |
| Another name | 1981 RW 2 , 1933 SM, 1955 FM, 1962 SF, 1971 OD, 1972 VE, 1972 XK 1 , 1977 UO 1 , 1977 VR 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. | |
(2983) Poltava is an asteroid of the main outer belt , which was discovered by the Soviet astronomer Nikolai Tschernych on September 2, 1981 at the Crimean Observatory in Nautschnyj ( IAU code 095).
There had been several sightings of the asteroid before: on September 25, 1933 (1933 SM) at the Royal Observatory of Belgium in Uccle , on March 20, 1955 (1955 FM) and in September 1962 (1962 SF) at the Goethe-Link- Observatory in Indiana , on July 17, 1971 (1971 OD), November 18, 1972 (1972 VE), December 3, 1972 (1972 XK 1 ) and October 18, 1977 (1977 UO 1 ) at the Crimean Observatory in Nautschnyj and on November 9 and 11, 1977 (1977 VR 2 ) at the Zimmerwald Observatory in the canton of Bern .
The mean diameter of (2983) Poltava was calculated to be 30.690 (± 0.178) km. It has a dark surface with an albedo of 0.072 (± 0.005). The rotation period was recorded on September 19 and 28, 2010 at the Osservatorio astronomico della Regione Autonoma Valle d'Aosta in Nus -Saint-Barthélemy by the Italian astronomer Albino Carbognani with an 81 cm Ritchey-Chrétien-Cassegrain telescope with 8.865 (± 0.003 ) Hours measured.
The asteroid was named after Poltava , a city in central Ukraine , on September 18, 1986 .
Web links
- (2983) Poltava in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (2983) Poltava in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances by (2983) Poltava according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ (2983) Poltava at the IAU Minor Planet Center (English)
- ^ Albino Carbognani: Lightcurves and Periods of Eighteen NEAs and MBAs . The Minor Planet Bulletin, vol. 38, no. 1, 01/2011, pages 57 to 60, bibcode : 2011MPBu ... 38 ... 57C (English)