4183 Cuno
From Wikipedia, the free encyclopedia
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.
| Discovery A | |
|---|---|
| Discoverer | Cuno Hoffmeister |
| Discovery date | June 5, 1959 |
| Alternate designations B |
1959 LM |
| Category | Apollo, Mars-crosser, Venus-crosser |
| Orbital elements C | |
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|
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| Eccentricity (e) | 0.636 |
| Semi-major axis (a) | 296.473 Gm (1.982 AU) |
| Perihelion (q) | 107.872 Gm (0.721 AU) |
| Aphelion (Q) | 485.073 Gm (3.243 AU) |
| Orbital period (P) | 1019.031 d (2.790 a) |
| Mean orbital speed | 18.827 km/s |
| Inclination (i) | 6.750° |
| Longitude of the ascending node (Ω) |
295.653° |
| Argument of perihelion (ω) |
235.437° |
| Mean anomaly (M) | 261.969° |
| Physical characteristics D | |
| Dimensions | 4.5 km |
| Mass | |
| Density | g/cm³ |
| Surface gravity | |
| Escape velocity | 0.0002? km/s |
| Rotation period | 3.6 h |
| Spectral class | Sq |
| Absolute magnitude | 14.4 |
| Albedo (geometric) | |
| Mean surface temperature |
K |
| Minor planets | ||
|---|---|---|
| Previous minor planet | 4183 Cuno | Next minor planet |
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| Vulcanoids | Near-Earth asteroids | Main belt | Jupiter Trojans | Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt · Scattered disc · Oort cloud) |
| For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names. |
