BjankaLuna Bjanka (v središču kroga) |
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Odkritelj | Bradford A. Smith / Voyager 2 |
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Datum odkritja | 23. januar, 1986 |
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| Uran VIII, S/1986 U 9 |
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| 59.165,550 ± 0,045 km[1] |
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Izsrednost | 0,00092 ± 0,000118[1] |
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| 0,434578986 ± 0,000000022 d[1] |
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Naklon tira | 0,19308 ± 0,054° (na Uranov ekvator)[1] |
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Obkroža | Uran |
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Razsežnosti | 64 × 46 × 46 km[2] |
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Srednji polmer | 27 ± 2 km[2] |
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| ~8300 km²[3] |
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Prostornina | ~71.000 km³[3] |
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Masa | ~9,2×1016 kg[3] |
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| ~1,3 g/cm³ (predvideno) |
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| ~0,0086 m/s2[3] |
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| ~0,022 km/s[3] |
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| sinhrono vrtenje[2] |
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| 0º[2] |
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Albedo | 0,08 ± 0,01 [4] |
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Temperatura | ~64 K[3] |
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Bjanka je Uranov satelit.
- ↑ 1,0 1,1 1,2 1,3 Jacobson, R.A. (1998). »The Orbits of the Inner Uranian Satellites From Hubble Space Telescope and Voyager2 Observations«. The Astronomical Journal. 115: 1195–1199. doi:10.1086/300263.
- ↑ 2,0 2,1 2,2 2,3 Karkoschka, Erich (2001). »Voyager's Eleventh Discovery of a Satellite of Uranus and Photometry and the First Size Measurements of Nine Satellites«. Icarus. 151: 69–77. doi:10.1006/icar.2001.6597.
- ↑ 3,0 3,1 3,2 3,3 3,4 3,5 Calculated on the basis of other parameters
- ↑ Karkoschka, Erich (2001). »Comprehensive Photometry of the Rings and 16 Satellites of Uranus with the Hubble Space Telescope«. Icarus. 151: 51–68. doi:10.1006/icar.2001.6596.