539 Pamina

539 Pamina is a minor planet orbiting the Sun in the main belt.^[2] It is named for the heroine of Mozart's opera, The Magic Flute. This asteroid was discovered by M. Wolf in 1904 at the Heidelberg observatory in Germany.^[3] It is orbiting at a distance of 2.74 AU from the Sun, with an orbital eccentricity (ovalness) of 0.212 and a period of 4.53 yr. The orbital plane is inclined at an angle of 6.8° to the ecliptic.^[1]

539 Pamina

Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	2 August 1904
Designations
MPC designation	(539) Pamina
Pronunciation	German: [paːmiːnaː]
Alternative designations	1904 OL
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	111.70 yr (40800 d)
Aphelion	3.3207 AU (496.77 Gm)
Perihelion	2.1569 AU (322.67 Gm)
Semi-major axis	2.7388 AU (409.72 Gm)
Eccentricity	0.21246
Orbital period (sidereal)	4.53 yr (1,655.6 d) 4.53 yr (1655.6 d)
Mean anomaly	216.44°
Mean motion	0° 13m 2.82s / day
Inclination	6.7963°
Longitude of ascending node	274.312°
Argument of perihelion	97.453°
Physical characteristics
Mean radius	26.985±1.7 km
Synodic rotation period	13.903 h (0.5793 d)
Geometric albedo	0.0800±0.011
Spectral type	Ch
Absolute magnitude (H)	10.1

Photometric observations of this asteroid taken in 2004 provided a light curve showing a rotation period of 13.903±0.001 h with a brightness amplitude of 0.10±0.01 in magnitude. Infrared measurements give a diameter estimate of 54±3 km.^[3]