345 Tercidina

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345 Tercidina
345Tercidina (Lightcurve Inversion).png
A three-dimensional model of 345 Tercidina based on its light curve.
Discovery
Discovered by Auguste Charlois
Discovery date November 23, 1892
Designations
1892 O
Minor planet category Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion 369.214 Gm (2.468 AU)
Perihelion 326.411 Gm (2.182 AU)
347.812 Gm (2.325 AU)
Eccentricity 0.062
1294.85 d (3.55 a)
19.53 km/s
201.557°
Inclination 9.751°
212.797°
229.931°
Physical characteristics
Dimensions 126x94x90km[1][2][3]
94 km[3]
98.78 ± 2.63[4] km
Mass (2.68 ± 1.18) × 1018[4] kg
Mean density
5.30 ± 2.37[4] g/cm3
12.371 h[3]
Albedo 0.065[3]
Spectral type
C[3]
8.71[3]

345 Tercidina is a large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.

It was discovered by Auguste Charlois on November 23, 1892, in Nice.

Size[edit]

Via asteroid occultations:

Observations of an occultation of a bright 5.5 magnitude star on September 17, 2002, produced seventy-five chords indicating an ellipsoid of 111×90 km.[2]

Observations of an occultation on November 15, 2005, near Grass Valley, CA, produced five chords indicating an incomplete outline of 126×111 km.[1] This larger result may be caused by a different orientation of the asteroid as it passed in front of the star.

References[edit]

  1. ^ a b Richard Nugent (2005-11-15). "345 Tercidina 2005 Nov 15". Richard's Astronomy Pages. Archived from the original on 27 December 2008. Retrieved 2008-12-03. 
  2. ^ a b "2002 European Asteroidal Occultation Results". euraster.net (a website for Asteroidal Occultation Observers in Europe). 2002-09-17. Retrieved 2008-12-03.  (Chords)
  3. ^ a b c d e f "JPL Small-Body Database Browser: 345 Tercidina (1892 O)" (2008-08-26 last obs). Retrieved 2008-12-03. 
  4. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.

External links[edit]