320 Katharina

320 Katharina
Discovery
Discovered by	Johann Palisa
Discovery date	11 October 1891
Designations
MPC designation	(320) Katharina
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 11 October 1891 in Vienna.

References

Minor planets navigator
319 Leona 320 Katharina 321 Florentina

Designation Groups List Moon Meanings of names
Asteroid	Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Damocloid Neptune trojan Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

Other

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