3540 Protesilaos

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3540 Protesilaos
Discovery and designation
Discovered by Freimut Börngen
Discovery date October 27, 1973
Designations
Named after Protesilaus
Alternative names 1973 UF5
Minor planet category Jupiter Trojan
Orbital characteristics
Epoch February 4, 2008 (JD 2454500.5)
Aphelion 877.796 Gm (5.868 AU)
Perihelion 694.827 Gm (4.645 AU)
Semi-major axis 786.312 Gm (5.256 AU)
Eccentricity 0.116
Orbital period 4401.516 d (12.05 a)
Average orbital speed 12.95 km/s
Mean anomaly 212.942°
Inclination 23.322°
Longitude of ascending node 26.429°
Physical characteristics
Dimensions ? km
Mass ?×10? kg
Mean density ? g/cm³
Equatorial surface gravity ? m/s²
Equatorial escape velocity ? km/s
Sidereal rotation period ? d
Axial tilt
Pole ecliptic latitude ?
Pole ecliptic longitude ?
Geometric albedo 0.10
Temperature ~121 K
Spectral type ?
Absolute magnitude (H) 9.0

    3540 Protesilaos is a Jupiter Trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Protesilaus, who fought during the Trojan War. It was discovered by Freimut Börngen at the Karl Schwarzschild Observatory in Tautenburg, Germany on October 27, 1973.

    External links

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