Questions and Answers
Planet Uranus - astronomy questions
1.
Who discovered Uranus?
William Herschel
2.
Uranus is the .... planet from the Sun.
4.
Uranus orbits the Sun once every:
84 years
5.
Composition of Uranus atmosphere is:
83% hydrogen, 15% helium, 2,3% methane
6.
Uranus average distance from the Sun is roughly:
20 AU
7.
The difference between Uranus minimum and maximum distance from the Sun is:
1.8 AU
8.
The Uranian axis of rotation is approximately parallel with the plane of the Solar System, with an axial tilt of:
97.77°
9.
Uranus's mass is roughly .... times that of Earth.
10.
How many known moons orbit Uranus?
27
11.
How many rings does Uranus have?
13
12.
Largest moon of Uranus is:
Titania
13.
Among the Uranian satellites, .... appears to have the youngest surface with the fewest impact craters and .... is the oldest.
14.
Uranus escape velocity equals:
21.3 km/s
15.
Is Uranus a planet with retrograde rotation?
yes
16.
Wind speeds on Uranus can reach:
900 km/h