823 Sisigambis

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.

823 Sisigambis
Discovery
Discovered byMax Wolf
Discovery siteHeidelberg
Discovery date31 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 arc100.04 yr (36540 d)
Aphelion2.4213 AU (362.22 Gm)
Perihelion2.0211 AU (302.35 Gm)
2.2212 AU (332.29 Gm)
Eccentricity0.090088
3.31 yr (1209.2 d)
176.61°
0° 17m 51.828s / day
Inclination3.6456°
255.028°
218.602°
Earth MOID1.03763 AU (155.227 Gm)
Jupiter MOID2.65835 AU (397.683 Gm)
TJupiter3.641
Physical characteristics
Mean radius
8.315±0.7 km
146 h (6.1 d)
0.1793±0.034
11.2

    References

    1. Noah Webster (1884) A Practical Dictionary of the English Language
    2. "823 Sisigambis (1916 ZG)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.
    3. Psi.edu Archived 2009-08-17 at the Wayback Machine
    4. "Asteroid Lightcurve Parameters". Archived from the original on 19 November 2003. Retrieved 3 November 2008.
    5. Adsabs.harvard.edu


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