Discovery | |
---|---|
Discovered by | C.-I. Lagerkvist |
Discovery site | La Silla Obs. |
Discovery date | 22 August 1979 |
Designations | |
MPC designation | 5088 Tancredi |
Named after
|
Gonzalo Tancredi (astronomer) |
1979 QZ1 · 1982 DP6 1985 RS3 |
|
main-belt · Themis | |
Orbital characteristics | |
Epoch 16 February 2017 (JD 2457800.5) | |
Uncertainty parameter 0 | |
Observation arc | 36.80 yr (13,443 days) |
Aphelion | 3.5927 AU |
Perihelion | 2.6154 AU |
3.1040 AU | |
Eccentricity | 0.1574 |
5.47 yr (1,998 days) | |
189.73° | |
0° 10m 48.72s / day | |
Inclination | 0.5844° |
5.7312° | |
84.818° | |
Physical characteristics | |
Dimensions | 12.81 km (derived) ±0.137 km 15.939 |
±0.0001 5.0591h | |
±0.0122 0.0695 0.08 (assumed) |
|
C | |
±0.07 (S) · 12.5 · 12.81 12.36 | |
5088 Tancredi, provisional designation 1979 QZ1, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 22 August 1979, by Swedish astronomer Claes-Ingvar Lagerkvist at ESO's La Silla Observatory in northern Chile.
The dark C-type asteroid is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun at a distance of 2.6–3.6 AU once every 5 years and 6 months (1,998 days). Its orbit has an eccentricity of 0.16 and an inclination of 1° with respect to the ecliptic. As no precoveries were taken, the asteroid's observation arc begins with its discovery observation in 1979.
In February 2009, a rotational light-curve was obtained for this asteroid from photometric observations by Gonzalo Tancredi at the Los Molinos Observatory near Montevideo, Uruguay. It gave a rotation period of ±0.0001 hours with a brightness amplitude of 0.31 5.0591magnitude (U=3-).