| 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) 15.939±0.137 km |
| 5.0591±0.0001 h | |
|
0.0695±0.0122 0.08 (assumed) |
|
| C | |
| 12.36±0.07 (S) · 12.5 · 12.81 | |
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 5.0591±0.0001 hours with a brightness amplitude of 0.31 magnitude (U=3-).