Discovery [1] [2] [3] | |
---|---|
Discovered by | OSSOS |
Discovery site | Mauna Kea Obs. |
Discovery date | 17 September 2017 (first observed only) |
Designations | |
2013 VZ70 | |
centaur [4] · horseshoe [3] | |
Orbital characteristics [4] | |
Epoch 1 July 2021 ( JD 2459396.5) | |
Uncertainty parameter 3 [4] · 4 [1] | |
Observation arc | 2.59 yr (946 d) |
Earliest precovery date | 9 August 2013 |
Aphelion | 10.010 AU |
Perihelion | 8.2816 AU |
9.1457 AU | |
Eccentricity | 0.0945 |
27.66 yr (10,102 d) | |
34.155 ° | |
0° 2m 8.16s / day | |
Inclination | 12.053° |
215.18° | |
245.30° | |
Saturn MOID | 0.33076 AU [1] |
TJupiter | 3.150 |
Physical characteristics | |
Mean diameter | 7.9 km (est. 0.09) [5] |
13.74±0.330 [1] [4] | |
2013 VZ70 is a centaur on a horseshoe co-orbital configuration with Saturn. [6] [7] It was first observed on 1 November 2013 by the Outer Solar System Origins Survey at Mauna Kea Observatory in Hawaii, United States. [1] The discovery was announced on 23 August 2021. [2]
2013 VZ70 is the first minor planet ever discovered in a horseshoe orbit with respect to Saturn. [3] [6] [7] It orbits the Sun at a distance of 8.3–10.0 AU once every 27 years and 8 months (10,102 days; semi-major axis of 9.15 AU). Its orbit has an eccentricity of 0.09 and an inclination of 12 ° with respect to the ecliptic. [4] Based on a generic magnitude-to-diameter conversion, assuming an albedo of 0.09, 2013 VZ70 measures approximately 7.9 kilometers (4.9 miles) in diameter for an absolute magnitude of 13.74. [4] [5]
The object may have an origin among the trans-Neptunian population. [6] However, an analysis of its orbit within the context of those of the known satellites of Saturn suggests that 2013 VZ70 could be related to the Inuit group; on the other hand, the mutual nodal distances of 2013 VZ70 and the moons Fornjot and Thrymr are below the first percentile of the distribution. [7]
Discovery [1] [2] [3] | |
---|---|
Discovered by | OSSOS |
Discovery site | Mauna Kea Obs. |
Discovery date | 17 September 2017 (first observed only) |
Designations | |
2013 VZ70 | |
centaur [4] · horseshoe [3] | |
Orbital characteristics [4] | |
Epoch 1 July 2021 ( JD 2459396.5) | |
Uncertainty parameter 3 [4] · 4 [1] | |
Observation arc | 2.59 yr (946 d) |
Earliest precovery date | 9 August 2013 |
Aphelion | 10.010 AU |
Perihelion | 8.2816 AU |
9.1457 AU | |
Eccentricity | 0.0945 |
27.66 yr (10,102 d) | |
34.155 ° | |
0° 2m 8.16s / day | |
Inclination | 12.053° |
215.18° | |
245.30° | |
Saturn MOID | 0.33076 AU [1] |
TJupiter | 3.150 |
Physical characteristics | |
Mean diameter | 7.9 km (est. 0.09) [5] |
13.74±0.330 [1] [4] | |
2013 VZ70 is a centaur on a horseshoe co-orbital configuration with Saturn. [6] [7] It was first observed on 1 November 2013 by the Outer Solar System Origins Survey at Mauna Kea Observatory in Hawaii, United States. [1] The discovery was announced on 23 August 2021. [2]
2013 VZ70 is the first minor planet ever discovered in a horseshoe orbit with respect to Saturn. [3] [6] [7] It orbits the Sun at a distance of 8.3–10.0 AU once every 27 years and 8 months (10,102 days; semi-major axis of 9.15 AU). Its orbit has an eccentricity of 0.09 and an inclination of 12 ° with respect to the ecliptic. [4] Based on a generic magnitude-to-diameter conversion, assuming an albedo of 0.09, 2013 VZ70 measures approximately 7.9 kilometers (4.9 miles) in diameter for an absolute magnitude of 13.74. [4] [5]
The object may have an origin among the trans-Neptunian population. [6] However, an analysis of its orbit within the context of those of the known satellites of Saturn suggests that 2013 VZ70 could be related to the Inuit group; on the other hand, the mutual nodal distances of 2013 VZ70 and the moons Fornjot and Thrymr are below the first percentile of the distribution. [7]