Astronomy:823 Sisigambis
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Short description: Main-belt asteroid
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 31 March 1916 |
| Designations | |
| (823) Sisigambis | |
| Pronunciation | /sɪsɪˈɡæmbɪs/[1] |
| 1916 ZG; A913 JB; 1937 QE; 1939 FA1; 1969 FN | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 100.04 yr (36540 d) |
| |{{{apsis}}}|helion}} | 2.4213 astronomical unit|AU (362.22 Gm) |
| |{{{apsis}}}|helion}} | 2.0211 AU (302.35 Gm) |
| 2.2212 AU (332.29 Gm) | |
| Eccentricity | 0.090088 |
| Orbital period | 3.31 yr (1209.2 d) |
| Mean anomaly | 176.61° |
| Mean motion | 0° 17m 51.828s / day |
| Inclination | 3.6456° |
| Longitude of ascending node | 255.028° |
| 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 |
| 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.[3] Its rotation period is unknown but appears to be greater than at least 12 hours.[4][5] 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. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=823;cad=1.
- ↑ Psi.edu
- ↑ "Asteroid Lightcurve Parameters". http://www.psi.edu/pds/archive/lc.html.
- ↑ 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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