421 Zähringia

421 Zähringia
Discovery
Discovered by	Max Wolf
Discovery date	7 September 1896
Designations
Named after	House of Zähringen
Alternative names	1896 CZ
Minor planet category	Main belt
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	111.70 yr (40800 d)
Aphelion	3.2600 AU (487.69 Gm)
Perihelion	1.8213 AU (272.46 Gm)
Semi-major axis	2.5406 AU (380.07 Gm)
Eccentricity	0.28314
Orbital period	4.05 yr (1479.1 d)
Average orbital speed	18.39 km/s
Mean anomaly	200.07°
Mean motion	0° 14^m 36.204^s / day
Inclination	7.7854°
Longitude of ascending node	187.398°
Argument of perihelion	209.239°
Earth MOID	0.830774 AU (124.2820 Gm)
Jupiter MOID	2.18357 AU (326.657 Gm)
Jupiter Tisserand parameter	3.376
Physical characteristics
Dimensions	11 - 24 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Rotation period	6.42 h (0.268 d)
Geometric albedo	unknown
Temperature	unknown
Spectral type	S
Absolute magnitude (H)	11.78

421 Zähringia is a small main belt asteroid.

It was discovered by Max Wolf on September 7, 1896, in Heidelberg.

References

Minor planets navigator

420 Bertholda 421 Zähringia 422 Berolina

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