1790 Volkov
| Discovery | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 9 March 1967 |
| Designations | |
| MPC designation | (1790) Volkov |
|
Named after
|
Vladislav Volkov (cosmonaut) |
| 1967 ER · 1926 AB 1950 BU1 · 1955 SV2 1957 FB |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 90.92 yr (33,209 days) |
| Aphelion | 2.4633 AU |
| Perihelion | 2.0126 AU |
| 2.2379 AU | |
| Eccentricity | 0.1007 |
| 3.35 yr (1,223 days) | |
| 346.61° | |
| 0° 17m 39.84s / day | |
| Inclination | 5.1111° |
| 2.0101° | |
| 147.74° | |
| Physical characteristics | |
| Dimensions |
7.087±0.093 km 8.057±0.059 km 8.67±0.35 km 8.98 km (calculated) |
|
10.7419±0.0002 h 21.455±0.005 h |
|
| 0.24 (assumed) 0.241±0.021 0.2790±0.0288 0.511±0.057 |
|
| S | |
| 12.4 · 12.50 | |
1790 Volkov, provisional designation 1967 ER, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 9 March 1967, by Russian astronomer Lyudmila Chernykh at Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.
Volkov is a stony S-type asteroid and member of the Flora family, one of the largest populations of inner main-belt asteroids. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,223 days). Its orbit has an eccentricity of 0.10 and an inclination of 5° with respect to the ecliptic. First identified as 1926 AB at Heidelberg Observatory,Volkov's observation arc is extended by 41 years prior to its official discovery observation.
Two rotational light-curves of Volkov were obtained from photometric observations by Robert Stephens and by French amateur astronomer Pierre Antonini in early 2007. The light-curves gave a rotation period of 10.7419 and 21.455 hours with a brightness variation of 0.09 and 0.14 magnitude, respectively (U=3/2).
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission,Volkov measures between 7.08 and 8.67 kilometers in diameter, and its surface has an albedo between 0.241 and 0.511. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its family – and calculates a diameter of 8.98 kilometers based on an absolute magnitude of 12.4.
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