Astronomy:421 Zähringia
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Short description: Main-belt asteroid
| Discovery [1] | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 7 September 1896 |
| Designations | |
| (421) Zähringia | |
| Named after | House of Zähringen [2] (medieval noble family)[2] |
| 1896 CZ · 1949 WJ A908 OB | |
| Minor planet category | main-belt · (middle) |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 112.92 yr (41,243 days) |
| |{{{apsis}}}|helion}} | 3.2604 AU |
| |{{{apsis}}}|helion}} | 1.8203 AU |
| 2.5404 AU | |
| Eccentricity | 0.2834 |
| Orbital period | 4.05 yr (1,479 days) |
| Mean anomaly | 297.47° |
| Mean motion | 0° 14m 36.24s / day |
| Inclination | 7.7854° |
| Longitude of ascending node | 187.40° |
| 209.23° | |
| Physical characteristics | |
| Dimensions | 14.119±0.320 km[1] |
| Rotation period | 6.42 h (0.268 d)[1] |
| Geometric albedo | 0.172±0.027[1] |
| S (Tholen) [1] | |
| Absolute magnitude (H) | 11.78[1] |
Zähringia (minor planet designation: 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.[1][2]
The first occultation of a star by 421 Zähringia was observed in 2021.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "421 Zahringia (1896 CZ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=421;cad=1.
- ↑ 2.0 2.1 2.2 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 )
- 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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