299 Thora

299 Thora
Discovery
Discovered by	Johann Palisa
Discovery date	October 6, 1890
Designations
Named after	Thor
Minor planet category	Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	386.739 Gm (2.585 AU)
Perihelion	341.515 Gm (2.283 AU)
Semi-major axis	364.127 Gm (2.434 AU)
Eccentricity	0.062
Orbital period	1387.017 d (3.8 a)
Average orbital speed	19.09 km/s
Mean anomaly	31.11°
Inclination	1.601°
Longitude of ascending node	241.63°
Argument of perihelion	150.489°
Physical characteristics
Dimensions	17.0 km^[1]
Rotation period	274 h^[1]
Albedo	0.1673^[1]
Absolute magnitude (H)	11.3^[1]

299 Thora is a 17 km Main belt asteroid with a potentially long 274 hour rotation period.^[1] It was discovered by Johann Palisa on October 6, 1890 in Vienna.

References

1 2 3 4 5 "JPL Small-Body Database Browser". JPL. Retrieved 6 April 2015.

External links

299 Thora at the JPL Small-Body Database

Discovery · Orbit diagram · Orbital elements · Physical parameters

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