Sun Trivia Questions and Answers
A Martian year is how long in earth days? ( A year being how long
it takes for the planet to travel around the sun)
A: 687 earth days.
Venus and
Mercury are inferior planets... Why?
A: Their orbits are nearer to the sun than earths. Superior planets
have orbits outside the earths.
Dr. Ben Green developed what in
1944 to protect pilots who bailed
out over the Pacific ocean?
A: Coppertone suntan lotion.
The ultimate source of energy for most renewable energy systems
is what?
A: The Sun.
What type of electromagnetic radiation is responsible for
sunburn?
A: Ultraviolet radiation.
What type of nuclear reaction powers the sun?
A: Fusion.
On sunscreen products, what does the SPF mean?
A: Sun Protection Factor.
The sun keeps the planets in orbit with it's force of what?
A: Gravity.
What planet has an orbit closest to the sun?
A: Mercury.
Two planets orbit the sun faster than the earth, what are the
names of the two planets?
A: Mercury and Venus.
The approximate temperature at the surface of the sun is what?
A: 5,800 K (9,980 F).
Which star is about halfway through its 10 billion year life
expectancy, will then expand into a red giant and finally shrink to
a white dwarf?
A: The sun.
What lies at the very center of the solar system?
A: The Sun.
What is the name of the planet that takes about 30 Earth years to
orbit the sun?
A: Saturn.
It takes light from the sun how long to reach the earth?
A: About 8 minutes and 18 seconds.
About how long is a sunspot cycle?
A: 11 years.
Which planet is most often the furthest from the sun, but not
always?
A: Pluto.
Which planet travels around the sun at an average speed of 185
miles per second?
A: The earth.
What are the thousands of small bodies orbiting the sun called?
A: Asteroids.
How far does the Sun's gravitational pull reach?
A: About 1 1/2 light years.
Helium forms about what percentage of the sun's mass?
A: 30 percent.
The sun is about how old?
A: 5 billion years.
How hot is the center of the sun?
A: The core of the Sun is 27,000,000 degrees Fahrenheit.
In 1991, where was the European
space probe Ulysses sent off to?
A: The Sun.
