Tercidina (minor planet designation: 345 Tercidina) is a large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
![]() A three-dimensional model of 345 Tercidina based on its light curve | |
Discovery | |
---|---|
Discovered by | Auguste Charlois |
Discovery date | 23 November 1892 |
Designations | |
MPC designation | (345) Tercidina |
Pronunciation | /tɜːrsɪˈdaɪnə/ |
Named after | (unknown) |
Alternative designations | 1892 O |
Minor planet category | Main belt |
Orbital characteristics[1] | |
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[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] |
Synodic rotation period | 12.371 h (0.5155 d)[1] |
Geometric albedo | 0.0654±0.007[1] |
Spectral type | C[1] |
Absolute magnitude (H) | 8.71[1] |
It was discovered by Auguste Charlois on 23 November 1892, in Nice.
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]
| |
---|---|
|
Small Solar System bodies | |||||||
---|---|---|---|---|---|---|---|
Minor planets |
| ||||||
Comets |
| ||||||
Other |
|
![]() | This article about a C-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |