2747 Český Krumlov
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Discovery
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Discovered by | Antonín Mrkos |
Discovery date | February 10, 1980 |
Designations
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Alternative names | 1953 FO1; 1975 EK5; 1977 SV2; 1977 TM3; 1977 TS7; 1980 DW; 1982 OM |
Minor planet category |
Main belt (Hygiea family) |
Epoch July 14, 2004 (JD 2453200.5) | |
Aphelion | 521.683 Gm (3.487 AU) |
Perihelion | 406.764 Gm (2.719 AU) |
Semi-major axis | 464.223 Gm (3.103 AU) |
Eccentricity | 0.124 |
Orbital period | 1996.646 d (5.47 a) |
Average orbital speed | 16.91 km/s |
Mean anomaly | 34.908° |
Inclination | 5.821° |
Longitude of ascending node | 345.022° |
Argument of perihelion | 303.935° |
Physical characteristics
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Dimensions | 33 km[1] |
Mass | ~3.3×1016 kg (estimate) |
Mean density | ~2 ? g/cm³ (estimate) |
Equatorial surface gravity | 0.0088 m/s² (estimate) |
Escape velocity | 0.0167 km/s (estimate) |
Rotation period | unknown |
Albedo | 0.0405 [1] |
Temperature | ~160 K max: 243K (-31° C) |
Spectral type | unknown |
Absolute magnitude | 11.6 |
2747 Český Krumlov (IPA: [ˈtʃɛski: ˈkrʊmlof]) is a small main belt asteroid, which was discovered by the Czech astronomer Antonín Mrkos in 1980. It is named after the historic Czech town of Český Krumlov.
Český Krumlov is a dark coloured asteroid (hence probably a carbonaceous C-type), and measures about 32 km in diameter.
[edit] References
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