What is the point in Earth's orbit when it is closest to the Sun called?
Answer
Perihelion
80 The Sun Trivia Questions with Answers
80 public questions with answers, drawn from the well. How many can you answer?
This Sun trivia hub examines our star from its interior to its magnetic atmosphere. Questions cover solar structure, oscillations, spectroscopy, solar wind, magnetic cycles, and orbital terminology, including the point when Earth is closest to the Sun and the spacecraft that returned solar-wind samples.
You’ll also encounter surprising details: helium was identified in the Sun’s spectrum before it was found on Earth, and the Sun’s visible color from space is essentially white rather than yellow. The set works well for astronomy students, classroom review, science quiz teams, and pub-quiz players who want a mix of familiar facts and deeper solar physics.
What is the study of sound waves propagating through the Sun called?
Answer
Helioseismology
What is the name of the Sun's complete 22-year magnetic cycle?
Answer
Hale cycle
In what year did solar cycle 24 reach its peak?
Answer
2014
How much mass does the Sun convert into energy each second via fusion?
Answer
4.26 million tonnes
What is the Sun's total luminosity in watts?
Answer
3.828 × 10^26 W
What spiral arm of the Milky Way is the Sun located in?
Answer
Orion Arm
What term describes the Sun's different rotation rates at different latitudes?
Answer
Differential rotation
What is the light travel time from the Sun to Earth in minutes?
Answer
8.3 minutes
What is the Sun's mass in kilograms?
Answer
1.989 × 10^30 kg
What is the Sun's radius in kilometers?
Answer
695,700 km
What is the name of the world's largest solar telescope, located in Hawaii?
Answer
Daniel K. Inouye Solar Telescope
What phenomenon solved the solar neutrino problem by showing neutrinos change flavor?
Answer
Neutrino oscillation
At which phase of the solar cycle does the Sun's magnetic field typically reverse?
Answer
Solar maximum
Which NASA spacecraft, launched in 2010, monitors the Sun in multiple wavelengths?
Answer
Solar Dynamics Observatory
What is the average distance from Earth to the Sun in millions of kilometers?
Answer
150 million km
What is the approximate orbital period of the Sun around the Galactic Center in million years?
Answer
250 million years
Which spacecraft was the first to orbit the Sun's poles?
Answer
Ulysses
What is the name of a large eruption of plasma from the Sun's corona?
Answer
Coronal mass ejection
What is the term for the 11-year sunspot cycle named after a German astronomer?
Answer
Schwabe cycle
What is the name of the boundary between the Sun's chromosphere and corona?
Answer
Transition region
What is the typical speed of the fast solar wind in km/s?
Answer
750 km/s
What percentage of the Sun's mass is hydrogen?
Answer
73.46%
What is the second atmospheric layer of the Sun, located above the photosphere?
Answer
Chromosphere
What is the escape velocity from the Sun's surface in km/s?
Answer
617.7 km/s
Which European Space Agency mission, launched in 2020, is studying the Sun?
Answer
Solar Orbiter
What is the core temperature of the Sun, in millions of Kelvin?
Answer
15.7 million K
The Sun trivia — quick answers
What are good Sun trivia questions?
Strong Sun trivia questions explore its composition, layers, magnetic behavior, oscillations, solar wind, and relationship with Earth. They can include familiar topics such as sunspots and eclipses, alongside more specialized subjects such as helioseismology, p-mode oscillations, the solar magnetic cycle, and the discovery of helium.
How hard is Sun trivia?
Sun trivia ranges from easy astronomy to specialist astrophysics. Introductory questions may ask about the Sun’s color or its position in the Solar System. More challenging questions can involve solar-core pressure, the 22-year magnetic cycle, spacecraft missions, spectroscopy, and sound waves moving through the Sun.
What is the Sun’s 22-year magnetic cycle?
The Sun’s complete magnetic cycle lasts about 22 years. During this period, the Sun’s magnetic field reverses polarity and eventually returns to its original orientation. The roughly 11-year sunspot cycle represents one half of this process, ending when the magnetic poles reverse.
What is helioseismology?
Helioseismology is the study of waves and oscillations inside the Sun. By observing how the solar surface moves, scientists infer conditions deep within the star, much as seismologists use earthquakes to study Earth’s interior. The field helps reveal solar rotation, internal structure, and convection.
Why was helium named after the Sun?
Helium was first identified through a yellow spectral line observed in the Sun during the 1868 solar eclipse. Scientists named the new element after Helios, the Greek god of the Sun. Helium was not discovered on Earth until 1895, nearly three decades after its solar identification.