320 Katharina

320 Katharina
Discovery
Discovered by	Johann Palisa
Discovery date	11 October 1891
Designations
Minor planet category	Main belt (Eos)
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	108.42 yr (39602 d)
Aphelion	3.36300 AU (503.098 Gm)
Perihelion	2.6595 AU (397.86 Gm)
Semi-major axis	3.01122 AU (450.472 Gm)
Eccentricity	0.11682
Orbital period	5.23 yr (1908.6 d)
Average orbital speed	17.16 km/s
Mean anomaly	315.691°
Mean motion	0° 11^m 19.036^s / day
Inclination	9.3783°
Longitude of ascending node	219.929°
Argument of perihelion	150.129°
Earth MOID	1.66358 AU (248.868 Gm)
Jupiter MOID	2.1203 AU (317.19 Gm)
Jupiter Tisserand parameter	3.219
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)
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Rotation period	6.893 h (0.2872 d)
Geometric albedo	0.3207-0.0677
Temperature	145.78 K-157.79 K
Spectral type	K-type?
Absolute magnitude (H)	10.8

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

Minor planets navigator

319 Leona 320 Katharina 321 Florentina

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