|
Cuno, imaged by radar
|
|
|
Discovery
|
|
|---|---|
| Discovered by | Cuno Hoffmeister |
| Discovery date | June 5, 1959 |
|
Designations
|
|
| Named after | Cuno Hoffmeister |
| Alternate name(s) | 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° |
|
Physical characteristics
|
|
| 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 (H) | 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.
|
|||||
|
||||||||||||||||||||||