Discovery | |
---|---|
Discovered by | M. F. Wolf |
Discovery site | Heidelberg Obs. |
Discovery date | 7 September 1896 |
Designations | |
MPC designation | (421) Zähringia |
Named after | House of Zähringen (medieval noble family) |
Alternative designations | 1896 CZ · 1949 WJ A908 OB |
Minor planet category | main-belt · (middle) |
Orbital characteristics | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 112.92 yr (41,243 days) |
Aphelion | 3.2604 AU |
Perihelion | 1.8203 AU |
Semi-major axis | 2.5404 AU |
Eccentricity | 0.2834 |
Orbital period (sidereal) | 4.05 yr (1,479 days) |
Mean anomaly | 297.47° |
Mean motion | 0° 14 36.24 / day |
Inclination | 7.7854° |
Longitude of ascending node | 187.40° |
Argument of perihelion | 209.23° |
Physical characteristics | |
Dimensions | 14.119±0.320 km |
Synodic rotation period | 6.42 h (0.268 d) |
Geometric albedo | 0.172±0.027 |
Spectral type | S (Tholen) |
Absolute magnitude (H) | 11.78 |
421 Zähringia, provisional designation 1896 CZ, is a stony asteroid from the intermediate asteroid belt, approximately 14 kilometers in diameter. It was discovered on 7 September 1896, by astronomer Max Wolf at Heidelberg Observatory in Germany. The asteroid was named for the House of Zähringen, a medieval noble family that ruled parts of Swabia and Switzerland.
The first occultation of a star by 421 Zähringia was observed in 2021.
References
- ^ "421 Zahringia (1896 CZ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
- ^ Schmadel, Lutz D. (2007). "(421) Zähringia". Dictionary of Minor Planet Names – (421) Zähringia. Springer Berlin Heidelberg. p. 49. doi:10.1007/978-3-540-29925-7_422. ISBN 978-3-540-00238-3.
External links
- Lightcurve plot of 421 Zahringia, Palmer Divide Observatory, B. D. Warner (2001)
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 421 Zähringia at AstDyS-2, Asteroids—Dynamic Site
- 421 Zähringia at the JPL Small-Body Database
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