839 Valborg
839 Valborg is a mid-sized S-type Eunomian asteroid. Its diameter is about 20 km, its albedo of 0.353 is very high for an asteroid. Its rotation period is 10.366 hours.
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 24 September 1916 |
| Designations | |
| (839) Valborg | |
| 1916 AJ; 1948 CF; 1952 BW1; 1954 UH1 | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 95.57 yr (34908 d) |
| Aphelion | 3.0122 AU (450.62 Gm) |
| Perihelion | 2.2193 AU (332.00 Gm) |
| 2.6158 AU (391.32 Gm) | |
| Eccentricity | 0.15157 |
| 4.23 yr (1545.2 d) | |
| 263.01° | |
| 0° 13m 58.692s / day | |
| Inclination | 12.605° |
| 338.211° | |
| 339.558° | |
| Earth MOID | 1.21054 AU (181.094 Gm) |
| Jupiter MOID | 2.32416 AU (347.689 Gm) |
| TJupiter | 3.357 |
| Physical characteristics | |
Mean radius | 10.195±0.4 km |
| 10.366 h (0.4319 d) | |
| 0.3534±0.028 | |
| 10.6 | |
References
- "839 Valborg (1916 AJ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.
External links
- Lightcurve plot of 839 Valborg, Palmer Divide Observatory, B. D. Warner (2005)
- 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
- 839 Valborg at AstDyS-2, Asteroids—Dynamic Site
- 839 Valborg at the JPL Small-Body Database
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