| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 31 March 1916 |
| Designations | |
| MPC designation | (823) Sisigambis |
| Pronunciation | /sɪsɪˈɡæmbɪs/ |
| Alternative designations | 1916 ZG; A913 JB; 1937 QE; 1939 FA1; 1969 FN |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 100.04 yr (36540 d) |
| Aphelion | 2.4213 AU (362.22 Gm) |
| Perihelion | 2.0211 AU (302.35 Gm) |
| Semi-major axis | 2.2212 AU (332.29 Gm) |
| Eccentricity | 0.090088 |
| Orbital period (sidereal) | 3.31 yr (1209.2 d) |
| Mean anomaly | 176.61° |
| Mean motion | 0° 17 51.828 / day |
| Inclination | 3.6456° |
| Longitude of ascending node | 255.028° |
| Argument of perihelion | 218.602° |
| Earth MOID | 1.03763 AU (155.227 Gm) |
| Jupiter MOID | 2.65835 AU (397.683 Gm) |
| TJupiter | 3.641 |
| Physical characteristics | |
| Mean radius | 8.315±0.7 km |
| Synodic rotation period | 146 h (6.1 d) |
| Geometric albedo | 0.1793±0.034 |
| Absolute magnitude (H) | 11.2 |
823 Sisigambis is an asteroid belonging to the Flora family in the Main Belt. Its diameter is about 17 km and it has an albedo of 0.179. Its rotation period is unknown but appears to be greater than at least 12 hours. The asteroid is named after Sisygambis, the mother of Darius III of Persia.
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- "823 Sisigambis (1916 ZG)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.
- Psi.edu Archived 2009-08-17 at the Wayback Machine
- "Asteroid Lightcurve Parameters". Archived from the original on 19 November 2003. Retrieved 3 November 2008.
- Adsabs.harvard.edu
External links
- 823 Sisigambis at AstDyS-2, Asteroids—Dynamic Site
- 823 Sisigambis at the JPL Small-Body Database
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