689 Zita

689 Zita

Discovery
Discovered by	J. Palisa
Discovery site	Vienna
Discovery date	12 September 1909
Designations
Alternative names	1909 HJ
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	60.38 yr (22054 d)
Aphelion	2.8480 AU (426.05 Gm)
Perihelion	1.7830 AU (266.73 Gm)
Semi-major axis	2.3155 AU (346.39 Gm)
Eccentricity	0.22997
Orbital period	3.52 yr (1287.0 d)
Mean anomaly	117.31°
Mean motion	0° 16^m 46.992^s / day
Inclination	5.7445°
Longitude of ascending node	168.175°
Argument of perihelion	188.158°
Earth MOID	0.777762 AU (116.3515 Gm)
Jupiter MOID	2.58871 AU (387.266 Gm)
Jupiter Tisserand parameter	3.539
Physical characteristics
Mean radius	7.18±0.3 km
Rotation period	6.425 h (0.2677 d)
Geometric albedo	0.1183±0.011
Absolute magnitude (H)	12.15

689 Zita is a minor planet orbiting the Sun. It was named after Zita of Bourbon-Parma, the last empress of Austria-Hungary.

References

1. "689 Zita (1909 HJ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

External links

• Discovery Circumstances: Numbered Minor Planets
• 689 Zita at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters