1793 Zoya
| Discovery | |
|---|---|
| Discovered by | T. Smirnova |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 28 February 1968 |
| Designations | |
| MPC designation | 1793 Zoya |
|
Named after
|
Zoya Kosmodemyanskaya (Hero of the Soviet Union) |
| 1968 DW · 1932 MC 1933 UV · 1946 TC 1949 QX · 1951 AE 1953 VP2 · 1953 VW1 1953 XF · 1969 RP1 |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.06 yr (30,336 days) |
| Aphelion | 2.4406 AU |
| Perihelion | 2.0070 AU |
| 2.2238 AU | |
| Eccentricity | 0.0975 |
| 3.32 yr (1,211 days) | |
| 261.96° | |
| Inclination | 1.5087° |
| 225.99° | |
| 323.32° | |
| Physical characteristics | |
| Dimensions |
8.348±0.301 km 9.41 km (calculated) |
|
5.75187±0.00001 h 5.751872±0.000005 h 5.753±0.001 h 7.0 h |
|
| 0.24 (assumed) 0.334±0.047 |
|
| S | |
| 12.20 · 12.3 · 12.31±0.23 | |
1793 Zoya, provisional designation 1968 DW, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 28 February 1968, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.
Zoya is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.4 AU once every 3 years and 4 months (1,211 days). Its orbit has an eccentricity of 0.10 and an inclination of 2° with respect to the ecliptic. First identified as 1932 MC at Johannesburg, Zoya's first used observation was taken at Uccle Observatory in 1933, when it was identified as 1933 UV, extending the asteroid's observation arc by 35 years prior to its official discovery observation.
In May 2008, a rotational light-curve of Zoya was obtained from photometric observations taken by astronomer James Brinsfield, giving a rotation period of 5.753 hours with a brightness variation of 0.40 magnitude (U=2+), superseding a previous period of 7.0 hours obtained by Claes-Ingvar Lagerkvist in 1978 (U=2). Modeled light-curves published in 2016, gave a period of 5.751872 and 5.75187, respectively (U=n.a.).
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