4183 Cuno
From Wikipedia, the free encyclopedia
Cuno, imaged by radar
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Discovery
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| Discovered by | Cuno Hoffmeister |
| Discovery date | June 5, 1959 |
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Designations
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| Alternative names | 1959 LM |
| Minor planet category |
Apollo, Mars-crosser, Venus-crosser |
| Epoch December 1, 2005 (JD 2453705.5) | |
| Aphelion | 485.073 Gm (3.243 AU) |
| Perihelion | 107.872 Gm (0.721 AU) |
| Semi-major axis | 296.473 Gm (1.982 AU) |
| Eccentricity | 0.636 |
| Orbital period | 1019.031 d (2.790 a) |
| Average orbital speed | 18.827 km/s |
| Mean anomaly | 261.969° |
| Inclination | 6.750° |
| Longitude of ascending node | 295.653° |
| Argument of perihelion | 235.437° |
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Physical characteristics
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| Dimensions | 4.5 km |
| Mean density | g/cm³ |
| Escape velocity | 0.0002? km/s |
| Rotation period | 3.6 h |
| Temperature | K |
| Spectral type | Sq |
| Absolute magnitude | 14.4 |
4183 Cuno is an Apollo, Mars- and Venus-crosser asteroid. It was discovered in 1959 by Cuno Hoffmeister, from whom the asteroid takes its name.
Cuno is about 4-9 km in diameter and is an S-type asteroid, meaning that it is highly reflective and composed of nickel-iron mixed with iron- and magnesium-silicates.
In December 2000, Cuno was analysed by radar to determine its shape. The resultant images are lacking in detail, but indicate a rough sphere with some kind of concave depression 1-2 km in diameter.
4183 Cuno approaches the Earth to within 40 Gm six times in the 21st century. In 2012 it makes its closest pass, at 18 Gm, until 2093.
[edit] External links
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