179 Klytaemnestra

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179 Klytaemnestra
Discovery
Discovered by J. C. Watson
Discovery date 11 November 1877
Designations
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 117.05 yr (42754 d)
Aphelion 3.3092 AU (495.05 Gm)
Perihelion 2.6323 AU (393.79 Gm)
2.9707 AU (444.41 Gm)
Eccentricity 0.11391
5.12 yr (1870.2 d)
78.880°
0° 11m 32.964s / day
Inclination 7.8159°
251.93°
103.72°
Earth MOID 1.64121 AU (245.522 Gm)
Jupiter MOID 2.16434 AU (323.781 Gm)
Jupiter Tisserand parameter 3.239
Physical characteristics
Dimensions 77.69±1.4 km[1]
75.02 ± 3.21 km[2]
Mass (2.49 ± 1.19) × 1017 kg[2]
Mean density
1.12 ± 0.55 g/cm3[2]
11.173 h (0.4655 d)
0.1609±0.006
S
8.15

179 Klytaemnestra is a fairly large main belt asteroid that was discovered by Canadian-American astronomer James Craig Watson on November 11, 1877.[3] It was the last of his 22 asteroid discoveries,[4] and was named after Clytemnestra, the wife of Agamemnon in Greek mythology. This is classified as a stony S-type asteroid, based upon its spectrum.

Photometric observations of this asteroid at the Oakley Observatory in Terre Haute, Indiana during 2006 gave a light curve with a period of 11.13 ± 0.02 hours and a brightness variation of 0.55 ± 0.02 in magnitude.[5]

References[edit]

  1. ^ a b Yeomans, Donald K., "179 Klytaemnestra", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016. 
  2. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336Freely accessible, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  3. ^ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, archived from the original on 2012-02-29, retrieved 2013-04-07. 
  4. ^ Leuschner, Armin O. (March 1919), "Perturbations and Tables of the Minor Planets Discovered by James C. Watson", Proceedings of the National Academy of Sciences of the United States of America, 5 (3), pp. 67–76, Bibcode:1919PNAS....5...67L, doi:10.1073/pnas.5.3.67. 
  5. ^ Ditteon, Richard; Hawkins, Scot (September 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory - October-November 2006", The Minor Planet Bulletin, 34 (3), pp. 59–64, Bibcode:2007MPBu...34...59D. 

External links[edit]