1675 Simonida
| Discovery | |
|---|---|
| Discovered by | M. B. Protić |
| Discovery site | Belgrade Obs. |
| Discovery date | 20 March 1938 |
| Designations | |
| MPC designation | (1675) Simonida |
|
Named after
|
Simonida (Queen) |
| 1938 FB · 1931 AZ 1936 SG · 1941 BD 1943 VJ · 1951 CL1 1953 VD · 1958 FE 1958 GX |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 85.83 yr (31,350 days) |
| Aphelion | 2.5119 AU |
| Perihelion | 1.9550 AU |
| 2.2334 AU | |
| Eccentricity | 0.1247 |
| 3.34 yr (1,219 days) | |
| 319.79° | |
| 0° 17m 43.08s / day | |
| Inclination | 6.7965° |
| 30.146° | |
| 50.119° | |
| Physical characteristics | |
| Dimensions |
11.08±0.5 km (IRAS:8) 12.16±0.52 km |
|
5.16±0.04 h 5.2885±0.0005 h 5.3±0.2 h |
|
|
0.211±0.019 0.2480±0.025 (IRAS:8) 0.2501 (SIMPS) |
|
| S | |
| 11.8 · 11.9 · 11.9±0.06 · 11.91 | |
1675 Simonida, provisional designation 1938 FB, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 20 March 1938, by Serbian astronomer Milorad Protić at Belgrade Astronomical Observatory. On the same night, Simonida was independently discovered by Belgian astronomer Fernand Rigaux at Uccle Observatory in Belgium.
The S-type asteroid is a member of the Flora family, a large population of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,219 days). Its orbit has an eccentricity of 0.12 and an inclination of 7° with respect to the ecliptic.Simonida's first observation was a precovery taken at Lowell Observatory in 1931, extending the body's observation arc by 7 years prior to its official discovery observation.
In March 1988, Polish astronomer Wiesław Z. Wiśniewski obtained a light-curve of Simonida that gave a rotation period of 5.3 hours with a brightness variation of 0.26 magnitude (U=2). In January 2004, astronomer A. Kryszczynska at Poznań Observatory measured a period of 5.2885 hours with an amplitude of 0.50 magnitude (U=2+). In January 2008, photometric observations by astronomers Martine Castets, Bernard Trégon, Arnaud Leroy and Raoul Behrend gave a rotation period of 5.16 hours with a brightness variation of 0.21 (U=3-).
...
Wikipedia