909 Ulla

909 Ulla
Discovery
Discovered by	K. Reinmuth
Discovery site	Heidelberg
Discovery date	7 February 1919
Designations
MPC designation	(909) Ulla
Alternative designations	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

Minor planets navigator
908 Buda 909 Ulla 910 Anneliese

Designation Groups List Moon Meanings of names
Asteroid	Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Damocloid Neptune trojan Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

Other

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