Easy Planet Neptune Trivia Quiz Questions With Answers
Neptune is which planet from the sun?
A: The eighth and farthest planet from the
Sun.
Where does Neptune rank in size compared to the other
planets in our solar system?
A: It is the fourth-largest planet by diameter and the third-largest by mass.
Among the gaseous planets in the Solar System, Neptune is
the most what?
A: Dense.
Neptune has how many times the mass of Earth?
A: 17.
Neptune is slightly more massive than its near-twin, which
is what planet?
A: Uranus.
Neptune orbits the Sun at what average distance?
A: 30.1 astronomical units.
What was the planet Neptune named after?
A: The Roman god of the sea.
Neptune was the first planet found by what?
A: Mathematical prediction rather than by empirical observation.
Unexpected changes in the orbit of Uranus led whom to
deduce that its orbit was subject to
gravitational perturbation by an unknown
planet?
A: Alexis Bouvard.
Neptune has been visited by how many spacecraft?
A: One, Voyager 2, which flew by the planet on 25 August
1989.
Neptune is similar in composition to Uranus, and both have
compositions which differ from what two planets?
A: Jupiter, and
Saturn.
Neptune's atmosphere is similar to Jupiter's and Saturn's
in that it is composed primarily of what?
A: Hydrogen and
helium.
What accounts for the planet's blue appearance?
A: Traces of methane in the outermost regions.
Neptune's atmosphere is notable for its active and visible
what?
A: Weather patterns.
On the Voyager 2 flyby, the planet's southern hemisphere
possessed a Great Dark Spot comparable to the what?
A: Great Red Spot on Jupiter.
These weather patterns are driven by the strongest
sustained winds of any planet in the Solar System, with recorded wind speeds as
high as what?
A: 1,300 mph.
Why is Neptune's outer atmosphere one of the coldest places
in the Solar System?
A: Because of its great distance from the Sun.
What is the temperature at the planet's centre?
A: Approximately 5,400 K (5,000 °C).
Neptune has a faint and fragmented what?
A: Ring system.
