595 Polyxena

595 Polyxena
	A three-dimensional model of 595 Polyxena based on its light curve
Discovery
Discovered by	August Kopff
Discovery site	Heidelberg
Discovery date	27 March 1906
Designations
MPC designation	(595) Polyxena
Pronunciation	/pɒˈlɪksɪnə/[1]
Alternative designations	1906 TZ
Orbital characteristics[2]
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	110.05 yr (40197 d)
Aphelion	3.4085 AU (509.90 Gm)
Perihelion	3.0083 AU (450.04 Gm)
Semi-major axis	3.2084 AU (479.97 Gm)
Eccentricity	0.062376
Orbital period (sidereal)	5.75 yr (2,099.1 d)
Mean anomaly	355.26°
Mean motion	0° 10m 17.4s / day
Inclination	17.828°
Longitude of ascending node	23.909°
Argument of perihelion	279.182°
Physical characteristics
Mean radius	54.535±1.1 km
Synodic rotation period	11.801 h (0.4917 d)
Geometric albedo	0.0937±0.004
Absolute magnitude (H)	7.9

Polyxena (minor planet designation: 595 Polyxena) is a minor planet orbiting the Sun. This main belt asteroid was discovered on 27 March 1906 by German astronomer August Kopff at the Heidelberg observatory. It was named after the youngest daughter of Priam and Hecuba, king and queen of Troy during the Trojan War.[3] 595 Polyxena is orbiting at a distance of 3.21 AU from the Sun, with an orbital eccentricity (ovalness) of 0.06 and a period of 5.75 yr (2,099.1 d). The orbital plane is inclined at an angle of 17.8° to the ecliptic.[2]

Light curves generated from photometric data indicate a sidereal rotation period of 11.794162±0.000023 h. Preliminary shape models of the asteroid suggest there's a flat region at the southern pole, perhaps indicating a concave area or an impact crater.[4]

References

Noah Webster (1884) A Practical Dictionary of the English Language
"595 Polyxena (1906 TZ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
Schmadel, Lutz (2003). Dictionary of minor planet names. Vol. 1. Springer. p. 61. ISBN 9783540002383.
Warner, Brian D. (October 2008). "A Preliminary Shape and Spin Axis Model for 595 Polyxena". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 35 (4): 171–172. Bibcode:2008MPBu...35..171W.

External links

Lightcurve plot of 595 Polyxena, Palmer Divide Observatory, B. D. Warner (2008)
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
595 Polyxena at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
595 Polyxena at the JPL Small-Body Database

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[1] Noah Webster (1884) A Practical Dictionary of the English Language

[jpldata-2] "595 Polyxena (1906 TZ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

[Schmadel_2003-3] Schmadel, Lutz (2003). Dictionary of minor planet names. Vol. 1. Springer. p. 61. ISBN 9783540002383.

[Warner_2008-4] Warner, Brian D. (October 2008). "A Preliminary Shape and Spin Axis Model for 595 Polyxena". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 35 (4): 171–172. Bibcode:2008MPBu...35..171W.