345 Tercidina

345 Tercidina
	A three-dimensional model of 345 Tercidina based on its lightcurve
Discovery
Discovered by	Auguste Charlois
Discovery date	23 November 1892
Designations
Pronunciation	/tɜːrsɪˈdaɪnə/
Named after	(unknown)
Alternative designations	1892 O
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	122.88 yr (44882 d)
Aphelion	2.46765 AU (369.155 Gm)
Perihelion	2.18337 AU (326.628 Gm)
Semi-major axis	2.32551 AU (347.891 Gm)
Eccentricity	0.061120
Orbital period (sidereal)	3.55 yr (1295.3 d)
Mean anomaly	288.675°
Mean motion	0° 16m 40.526s / day
Inclination	9.74765°
Longitude of ascending node	212.629°
Argument of perihelion	230.279°
Physical characteristics
Dimensions	126x94x90 km; 94 km (mean); 98.78 ± 2.63 km
Mass	(2.68 ± 1.18) × 1018 kg
Mean density	5.30 ± 2.37 g/cm3
Synodic rotation period	12.371 h (0.5155 d)
Geometric albedo	0.0654±0.007
Spectral type	C
Absolute magnitude (H)	8.71

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.

Observations of an occultation on 15 November 2005, near Grass Valley, California, produced five chords indicating an incomplete outline of 126×111 km. 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 2 3 4 5 6 7 "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.
1 2 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.
1 2 "2002 European Asteroidal Occultation Results". euraster.net (a website for Asteroidal Occultation Observers in Europe). 17 September 2002. Retrieved 3 December 2008. (Chords)
1 2 3 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.

External links

345 Tercidina at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
345 Tercidina at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This article about a C-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by adding missing information.

[jpldata-1] 1 2 3 4 5 6 7 "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.

[Richard-2] 1 2 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.

[euraster-3] 1 2 "2002 European Asteroidal Occultation Results". euraster.net (a website for Asteroidal Occultation Observers in Europe). 17 September 2002. Retrieved 3 December 2008. (Chords)

[Carry2012-4] 1 2 3 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.