909 Ulla

909 Ulla
Discovery
Discovered by	K. Reinmuth
Discovery site	Heidelberg
Discovery date	7 February 1919
Designations
Alternative names	1919 FA
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	96.01 yr (35068 days)
Aphelion	3.8664 AU (578.41 Gm)
Perihelion	3.2269 AU (482.74 Gm)
Semi-major axis	3.5467 AU (530.58 Gm)
Eccentricity	0.090150
Orbital period	6.68 yr (2439.7 d)
Mean anomaly	332.87°
Mean motion	0° 8^m 51.216^s / day
Inclination	18.790°
Longitude of ascending node	146.370°
Argument of perihelion	233.389°
Earth MOID	2.26145 AU (338.308 Gm)
Jupiter MOID	1.63869 AU (245.145 Gm)
Jupiter Tisserand parameter	3.024
Physical characteristics
Mean radius	7001582200000000000♠58.22±1.2 km
Rotation period	8.73 h (0.364 d)
Geometric albedo	6998343000000000000♠0.0343±0.001
Absolute magnitude (H)	8.95

909 Ulla is a minor planet orbiting the Sun.

References

↑ "909 Ulla (1919 FA)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 2 May 2016.

External links

Discovery · Orbit diagram · Orbital elements · Physical parameters

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