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2 External links  














97 Klotho






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97 Klotho
A three-dimensional model of 97 Klotho based on its light curve.
Discovery
Discovered byErnst Wilhelm Tempel
Discovery date17 February 1868
Designations

MPC designation

(97) Klotho
Pronunciation/ˈklθ/[1]

Named after

Clotho

Minor planet category

Main belt
AdjectivesKlothoian /klˈθ.iən/
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc145.72 yr (53224 d)
Aphelion3.3534 AU (501.66 Gm)
Perihelion1.99073 AU (297.809 Gm)

Semi-major axis

2.67206 AU (399.734 Gm)
Eccentricity0.25498

Orbital period (sidereal)

4.37 yr (1595.4 d)

Average orbital speed

17.93 km/s

Mean anomaly

85.0170°

Mean motion

0° 13m 32.336s / day
Inclination11.783°

Longitude of ascending node

159.705°

Argument of perihelion

268.687°
Physical characteristics
Dimensions82.83±4.5 km[2]
84.79 ± 3.13 km[3]
Mass(1.33 ± 0.13) × 1018kg[3]

Mean density

4.16 ± 0.62 g/cm3[3]

Synodic rotation period

35.15 h (1.465 d)[2]
10.927 h[4]

Geometric albedo

0.2285±0.027[2]
0.229 [5]

Spectral type

M (Tholen)
X (Bus)
Xc (DeMeo et al)[6]

Absolute magnitude (H)

7.63

Klotho (minor planet designation: 97 Klotho) 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 Klotho or Clotho, one of the three Moirai, or Fates, in Greek mythology.

13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 108 km.[7]

In 1990, the asteroid was observed for four nights from the Collurania-Teramo Observatory in Italy, producing an asymmetric light curve that showed a rotation period of 10.927 ± 0.001 hours and a brightness variation of 0.17 ± 0.02 in magnitude. This period confirms a value independently determined in 1971.[4]

References[edit]

  1. ^ Benjamin Smith (1903) The Century Dictionary and Cyclopedia
  • ^ a b c d Yeomans, Donald K., "97 Klotho", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
  • ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
  • ^ a b Dotto, E.; et al. (June 1992), "M-type asteroids - Rotational properties of 16 objects", Astronomy and Astrophysics Supplement Series, vol. 95, no. 2, pp. 195–211, Bibcode:1992A&AS...95..195D.
  • ^ Asteroid Data Sets Archived 2009-12-17 at the Wayback Machine
  • ^ DeMeo, Francesca E.; et al. (2011), "An extension of the Bus asteroid taxonomy into the near-infrared" (PDF), Icarus, 202 (1): 160–180, Bibcode:2009Icar..202..160D, doi:10.1016/j.icarus.2009.02.005, archived from the original (PDF) on 17 March 2014, retrieved 22 March 2013. See appendix A.
  • ^ Ostro, S. J.; et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science, vol. 229, no. 4712, pp. 442–446, Bibcode:1985Sci...229..442O, doi:10.1126/science.229.4712.442, PMID 17738665.
  • External links[edit]


  • t
  • e

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=97_Klotho&oldid=1195661817"

    Categories: 
    Minor planet object articles (numbered)
    Background asteroids
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    Astronomical objects discovered in 1868
    Main-belt-asteroid stubs
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    Articles with short description
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