4183 Cuno

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4183 Cuno
Cuno, imaged by radar
Cuno, imaged by radar
Discovery
Discovered by Cuno Hoffmeister
Discovery date June 5, 1959
Designations
Named after
Cuno Hoffmeister
1959 LM
Minor planet category Apollo, Mars-crosser,
Venus-crosser
Orbital characteristics
Epoch December 1, 2005 (JD 2453705.5)
Aphelion 485.073 Gm (3.243 AU)
Perihelion 107.872 Gm (0.721 AU)
296.473 Gm (1.982 AU)
Eccentricity 0.636
1019.031 d (2.790 a)
18.827 km/s
261.969°
Inclination 6.750°
295.653°
235.437°
Physical characteristics
Dimensions 4.5 km
3.6 h
Spectral type
Sq
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. On 2012-May-20 Cuno made its closest Earth approach at a distance of 0.12182 AU (18,224,000 km; 11,324,000 mi).[1] It will not make a closer approach until 2093.

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