MISSIONS TO URANUS

Int.


Astronomical specifications:

Discovery 
Orbital characteristics:
Distance from Sun 2.870.972.200 km
Perihelion 2741.3 x (106 km)
Aphelion 3003.6 x (106 km)
Orbital Inclination 0.76 deg
Orbital Eccentricity 0.047
Orbital periode round Sun 84.017 years
Orbital Speed 6.835 km/s
Number of moons 27
Rings Yes
Physical characteristics:
Diameter 51,118 km
Surface area 8,100,000,000 km
Volume 6.834 x 1013 km
Mass 8.685 x 1025 kg
Density 1270 kg/cm
Equatorial gravity 8.69 m/s
Escape velocity 21.29 km/s
Rotation period -17.2 hours
Axial tilt 97.86 deg
Surface temperature -195 C (76 K)
Surface Pressure - bars
Atmospheric composition H2 He CH4

Image of the planet Uranus taken by the spacecraft Voyager 2 in 1986


Early history:

Space race:

Uranus missions:

Name Launch
Date
Launch rocket Weight
(kg)
Mission
Voyager 2 (USA) 20-Aug-77 Titan-Centaur 815 kg Voyager 2 flew by Jupiter on July 9, 1979, Saturn on August 26, 1981, Uranus on January 24, 1986, and Neptune on August 24, 1989.. Returned pictures and data.


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