97 Klotho
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Discovery | |
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Discovered by: | Ernst Wilhelm Tempel |
Discovery date: | February 17, 1868 |
Alternative names: | |
Minor planet category: | Main belt |
Orbital characteristics | |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion distance: | 501.752 Gm (3.354 AU) |
Perihelion distance: | 296.593 Gm (1.983 AU) |
Semi-major axis: | 399.173 Gm (2.668 AU) |
Eccentricity: | 0.257 |
Orbital period: | 1592.030 d (4.36 a) |
Avg. orbital speed: | 17.93 km/s |
Mean anomaly: | 14.314° |
Inclination: | 11.783° |
Longitude of ascending node: | 159.776° |
Argument of perihelion: | 268.671° |
Physical characteristics | |
Dimensions: | 82.8 km |
Mass: | 5.9×1017 kg |
Mean density: | ? g/cm³ |
Equatorial surface gravity: | 0.0231 m/s² |
Escape velocity: | 0.0438 km/s |
Rotation period: | ? d |
Albedo: | 0.229 [1] |
Temperature: | ~170 K |
Spectral type: | M |
Absolute magnitude: | 7.63 |
97 Klotho (kloh'-thoh) is a fairly large main belt asteroid. While it is an M-type, its radar albedo is too low to allow a nickel-iron composition. Klotho is similar to 21 Lutetia and 22 Kalliope in that all three are M-types of unknown composition. Klotho was found by Ernst Tempel on February 17, 1868. It was his fifth and final asteroid discovery. It is named after one of the three Moirae, or Fates, in Greek mythology.
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List of asteroids |
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.