345 Tercidina

345 Tercidina
A three-dimensional model of 345 Tercidina based on its light curve
Discovery
Discovered byAuguste Charlois
Discovery date23 November 1892
Designations
(345) Tercidina
Pronunciation/tɜːrsɪˈdaɪnə/
Named after
(unknown)
1892 O
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc122.88 yr (44882 d)
Aphelion2.46765 AU (369.155 Gm)
Perihelion2.18337 AU (326.628 Gm)
2.32551 AU (347.891 Gm)
Eccentricity0.061120
3.55 yr (1295.3 d)
288.675°
0° 16m 40.526s / day
Inclination9.74765°
212.629°
230.279°
Physical characteristics
Dimensions126x94x90 km[2][3][1]
94 km (mean)[1]
98.78 ± 2.63 km[4]
Mass(2.68 ± 1.18) × 1018 kg[4]
Mean density
5.30 ± 2.37 g/cm3[4]
12.371 h (0.5155 d)[1]
0.0654±0.007[1]
C[1]
8.71[1]

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 23 November 1892, in Nice.

Size

Via asteroid occultations:

Observations of an occultation of a bright 5.5 magnitude star on 17 September 2002, produced seventy-five chords indicating an ellipsoid of 111×90 km.[3]

Observations of an occultation on 15 November 2005, near Grass Valley, California, produced five chords indicating an incomplete outline of 126×111 km.[2] This larger result may be caused by a different orientation of the asteroid as it passed in front of the star.[citation needed]

References

  1. ^ a b c d e f g "JPL Small-Body Database Browser: 345 Tercidina (1892 O)" (2008-08-26 last obs). Archived from the original on 16 September 2011. Retrieved 6 May 2016.
  2. ^ a b Richard Nugent (15 November 2005). "345 Tercidina 2005 Nov 15". Richard's Astronomy Pages. Archived from the original on 27 December 2008. Retrieved 3 December 2008.
  3. ^ a b "2002 European Asteroidal Occultation Results". euraster.net (a website for Asteroidal Occultation Observers in Europe). 17 September 2002. Retrieved 3 December 2008. (Chords)
  4. ^ 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.


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