320 Katharina

320 Katharina

Discovery
Discovered by	Johann Palisa
Discovery date	October 11, 1891
Designations
Minor planet category	Main belt (Eos)
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	501.431 Gm (3.352 AU)
Perihelion	399.92 Gm (2.673 AU)
Semi-major axis	450.676 Gm (3.013 AU)
Eccentricity	0.113
Orbital period	1909.845 d (5.23 a)
Average orbital speed	17.16 km/s
Mean anomaly	242.461°
Inclination	9.381°
Longitude of ascending node	220.047°
Argument of perihelion	151.497°
Physical characteristics
Dimensions	17 - 37 km
Mass	[7.72 x 10^15 kg - 7.97 x 10^16 kg]? (assumed)
Mean density	3.0 g/cm^3? (assumed)
Surface gravity	unknown
Escape velocity	unknown
Rotation period	unknown
Albedo	0.3207-0.0677
Temperature	145.78 K-157.79 K
Spectral type	K-type?
Absolute magnitude (H)	10.7

320 Katharina is a small Main belt asteroid orbiting in the Eos family of asteroids, including 513 Centesima and 221 Eos.^[1] It was discovered by Johann Palisa on October 11, 1891 in Vienna.

References

1. "JPL Small-Body Database Browser". JPL. Retrieved 6 April 2015.

External links

• 320 Katharina at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters