539 Pamina

{{Use dmy dates|date=October 2019}}

{{Infobox planet

| minorplanet= yes

| background= #D6D6D6

| name= 539 Pamina

| mpc_name= (539) Pamina

| pronounced= {{IPA|de|paːmiːnaː|lang}}

| alt_names= 1904 OL

| discoverer= Max Wolf

| discovered= 2 August 1904

| discovery_site= Heidelberg

| epoch= 31 July 2016 (JD 2457600.5)

| eccentricity= 0.21246

| semimajor= {{cvt|2.7388|AU|Gm}}

| perihelion= {{cvt|2.1569|AU|Gm}}

| aphelion= {{cvt|3.3207|AU|Gm|lk=on}}

| period= {{cvt|1655.6|days|years|2|order=flip}} 4.53 yr (1655.6 d)

| inclination= 6.7963°

| asc_node= 274.312°

| arg_peri= 97.453°

| mean_anomaly= 216.44°

| mean_motion= {{Deg2DMS|0.21745|sup=ms}} / day

| orbit_ref= {{Cite web |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=539;cad=1 |title=539 Pamina (1904 OL) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=5 May 2016}}

| observation_arc= 111.70 yr (40800 d)

| uncertainty= 0

| abs_magnitude= 10.1

| rotation= {{Convert|13.903|h|d|abbr=on|lk=on}}

| albedo= {{val|0.0800|0.011}}

| mean_radius= {{val|26.985|1.7}} km

| spectral_type=Ch

}}

539 Pamina is a minor planet orbiting the Sun in the main belt.{{cite web|title=Minor Planet Names: Alphabetical List|url=https://www.minorplanetcenter.net/iau/lists/MPNames.html|work=IAU Minor Planet Center|publisher=IAU|access-date=17 April 2013}} 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. It is orbiting at a distance of {{val|2.74|ul=AU}} from the Sun, with an orbital eccentricity (ovalness) of 0.212 and a period of {{cvt|1655.6|days|years|2|disp=out}}. The orbital plane is inclined at an angle of 6.8° to the ecliptic.

Photometric observations of this asteroid taken in 2004 provided a light curve showing a rotation period of {{val|13.903|0.001|u=hours}} with a brightness amplitude of {{val|0.10|0.01}} in magnitude. Infrared measurements give a diameter estimate of {{val|54|3|u=km}}.