509 Iolanda

509 Iolanda is a minor planet orbiting the Sun.

509 Iolanda

A three-dimensional model of 509 Iolanda based on its light curve
Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	28 April 1903
Designations
MPC designation	(509) Iolanda
Pronunciation	Italian: [joˈlanda][1]
Alternative designations	1903 LR
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	112.97 yr (41263 d)
Aphelion	3.3534 AU (501.66 Gm)
Perihelion	2.7718 AU (414.66 Gm)
Semi-major axis	3.0626 AU (458.16 Gm)
Eccentricity	0.094960
Orbital period (sidereal)	5.36 yr (1957.6 d)
Mean anomaly	249.896°
Mean motion	0° 11m 2.004s / day
Inclination	15.410°
Longitude of ascending node	217.547°
Argument of perihelion	157.882°
Physical characteristics
Mean radius	26.495±1.85 km
Synodic rotation period	12.306 h (0.5128 d)
Geometric albedo	0.2747±0.043
Absolute magnitude (H)	8.40