Jupiter Trivia

1. Jupiter is predominantly composed of hydrogen. What gas makes up around a quarter of its mass?

From Quiz Jupiter: World of a Mighty Gas Giant

Answer: Helium

Jupiter is home to the largest ocean in the Solar System - this is an ocean of liquid hydrogen. Like the Sun, Jupiter's composition is a mixture of hydrogen and helium. Helium accounts for around a tenth of Jupiter's volume, as well as contributing to a quarter of its mass. Metallic droplets of helium fall as rain on Jupiter. Because the planet is so huge, the pressure gets more extreme the deeper you go into the planet. As the pressure increases, the the hydrogen and helium atoms are squeezed to the point where they behave curiously. Under the liquid ocean of hydrogen on Jupiter the atoms lock together, acting like solid metal. Metallic hydrogen does not occur anywhere naturally on Earth. Saturn is also composed of 75% hydrogen and 25% helium.

From Quiz About Jupiter and its Satellites

Answer: 3.1

Jupiter's axis lies tilted from the perpendicular by 3.1 degrees. Due to this, Jupiter has seasons like earth.

From Quiz Jupiter, the Wood Star

Answer: Jupiter is shrinking

Jupiter, being the most massive planet in the Solar System, is the closest to being a star, in terms of mass, that is. Were it about 75 times more massive, it would begin fusing hydrogen. At its present mass, however, it generates a high amount of heat as it shrinks under gravity. Jupiter is known to have been shrinking since it was formed. It is unknown when Jupiter will stop shrinking.

From Quiz All About Jupiter

Answer: Zeus

Zeus was the king of the gods in Greek mythology, with the Romans using the name of Jupiter. Interestingly, the ancients could not have known that the planet they named Jupiter (king of the gods), is the largest planet in the solar system.

From Quiz Jupiter: World of a Mighty Gas Giant

Answer: 270 - 425 (434 - 683 km)

The Great Red spot is a storm that has been raging on Jupiter for hundred of years. It is located about 22 degrees south of Jupiter's equator. Records of this phenomena as far back as 1665-1713, are concluded to be descriptions of the same storm. This means that the storm has been raging for over 350 years, if this assertion is correct. The storm has been consistently monitored from Earth since 1878. The Great Red Spot spins anticlockwise, and takes around six Earth days to completely rotate.

From Quiz About Jupiter and its Satellites

Answer: 778,000,000 km.

Jupiter lies about five times as far from the sun as earth's orbit does. The earth's distance from the sun is about 150,000,000 km. Now you can easily calculate what should be the answer.

From Quiz All About Jupiter

Answer: 318 times that of Earth

Jupiter is more than twice as massive as all the other planets in our Solar System combined. Some scientists describe our Solar System as the Sun, Jupiter and debris.

From Quiz Jupiter: World of a Mighty Gas Giant

Answer: 1995

The Galileo space probe was the first space craft to fully orbit Jupiter. Spacecraft usually find their correct alignment from spinning around a stationary axis, or maintain the correct alignment via coordinates to a star, or the Sun. The Galileo space probe could do both of these things. Galileo was nuclear powered. At the time both solar power and chemical battery power would have been very impractical - to build Galileo via solar power would have required 700 square feet of solar panels. The space craft was instead powered by the radioactive decay of plutonium-238, a radioactive isotope of plutonium. The heat of this decay propelled the spacecraft via its conversion into electricity.

From Quiz About Jupiter and its Satellites

Answer: Metis

Metis is a small satellite and irregular in shape. The surface of Metis appears dark and red, and has many craters.

From Quiz Jupiter: World of a Mighty Gas Giant

Answer: Europa

Europa is the sixth-largest known moon in the Solar System and the sixth-closest moon to Jupiter, out of all the known 79 moons. Europa has a thin atmosphere, consisting predominantly of oxygen, and has a water-ice crust. It is mainly composed of silicate rock, and is a little smaller than Earth's moon. Although Jupiter has 79 known moons there are four Galilean moons. These are its major moons. Europa possess the smoothest surface of any known moon in the Solar System. Scientists have theorized that an ocean is beneath the surface of Europa, which contributes to the smoothness of the surface. This also makes Europa a candidate for potential extra-terrestrial life. As of 2020, no spacecraft has yet landed on Europa. Europa is named after one of Zeus' lovers in Greek mythology.

From Quiz About Jupiter and its Satellites

Answer: Robert Hooke

Robert Hooke discovered this spot in 1664, although many sources give joint credit to Giovanni Cassini. In 1831, astronomers first recorded the spot's precise form and named it as the Great Red Spot.

From Quiz All About Jupiter

Answer: Four

In order of distance from Jupiter, Io, Europa, Ganymede and Callisto. Io is a volcanic world, Europa may have an ocean under its surface, Ganymede is the largest satellite of Jupiter and Callisto is the most heavily cratered world in the Solar System.

From Quiz About Jupiter and its Satellites

Answer: Oval

The Great Red Spot is oval in shape, although there are signs that it is becoming more circular in the early part of the twenty-first century. It appears red in colour and has a circumference larger than that of the earth.

From Quiz Jupiter: World of a Mighty Gas Giant

Answer: Pandia

Scott S. Sheppard, an American astonomer, discovered Pandia in 2017. Pandia is named after one of the Greek god Zeus' children, whom he had with Selene. Pandia was the goddess of the full moon. Isonoe was also discovered by Scott S. Sheppard and his team, but it was discovered in 2000. He has also discovered several other moons of Jupiter throughout the years.

From Quiz About Jupiter and its Satellites

Answer: Europa

Europa has a diameter of about 3122 km. This satellite has an extremely thin atmosphere. Europa takes 3.55 days to orbit the planet.

From Quiz Jupiter, the Wood Star

Answer: Its gravity is strong enough to pull the orbital barycenter outside of the Sun's surface

An orbital barycenter is defined as the area around which two objects orbit. For example, the Earth-Moon barycenter is within Earth itself. The barycenter for all planets except Jupiter lies in the body of the Sun. Jupiter's gravity is so strong, however, that it pulls the barycenter outside of the Sun, so they, in effect, orbit each other.

From Quiz About Jupiter and its Satellites

Answer: Himalia

Himalia was first seen in the year 1904. Himalia orbits in the same direction that Jupiter rotates.

From Quiz Jupiter, the Wood Star

Answer: Jupiter's rings

Though not nearly as noticeable as the rings of Saturn, Jupiter does have rings. There are only three sections compared to Saturn's twenty-three, and they are very thin and faint.

From Quiz All About Jupiter

Answer: Comet Shoemaker-Levy 9

On July 16-22, 1994 Comet Shoemaker-Levy 9 slammed into Jupiter. The comet was discovered in 1993 by Carolyn and Eugene Shoemaker and David Levy. Over 20 fragments collided with Jupiter. Comet Hale-Bopp graced our skies in 1997, Comet Halley will return again in 2061 and Comet Ajax is probably under your kitchen sink!

From Quiz Jupiter: World of a Mighty Gas Giant

Answer: 484 million (7,7892,2496 km)

This is equivalent to 5.2 Astronomical Units away. By comparison Earth is one AU from the Sun. Sunlight takes around 43 minutes to reach Jupiter.

From Quiz About Jupiter and its Satellites

Answer: 1.3 grams per cubic centimeter

Saturn's density is about 0.7 grams per cubic centimeter and Neptune's density is about 1.6 grams per cubic centimeter. Jupiter's low density indicates that it is composed mostly of light elements.

From Quiz Jupiter, the Wood Star

Answer: Pluto

Launched in 2006, the New Horizons probe was sent to fly by Pluto, sending us our first up-close pictures of the small planet. In 2007, it flew by Jupiter, capturing some pictures of cryo-volcanic activity on Io. Using Jupiter's gravity as a sling-shot effect, New Horizons became the fastest unmanned spacecraft since Voyager 1.

From Quiz All About Jupiter

Answer: Four

They are Metis, Adrastea, Amalthea and Thebe. All but Amalthea were discovered by the Voyager spacecraft. Metis is about 60 km in diameter, Adrastea is about 20 km in diameter, Amalthea is about 247 km across and Thebe is about 116 km across. Metis and Adrastea may be responsible for providing the material for Jupiter's ring.

From Quiz Jupiter, the Wood Star

Answer: Juno

Juno is also the name of one of the largest known asteroids. Both the space probe and the celestial body are named after the wife of Jupiter.

From Quiz All About Jupiter

Answer: 143,000

Over eleven Earth's would fit across Jupiter's diameter. Jupiter is usually the fourth brightest object in the sky, after the Sun, Moon and Venus (at times the planet Mars can be brighter). Jupiter is about 90 percent hydrogen and 10 percent helium, there are traces of methane, water and ammonia.

From Quiz All About Jupiter

Answer: 59.6

The Earth's escape velocity is only 11.2 km per second.

From Quiz All About Jupiter

Answer: Fifth

Since Jupiter is just beyond the main asteroid belt, it is no surprise that it "controls" some of the asteroids. These are called Trojan asteroids. These asteroids are located near Jupiter's Lagrange points (60 degrees ahead and behind Jupiter in its orbit). Several hundred such asteroids are now known.

From Quiz All About Jupiter

Answer: 1.77

Europa revolves in 3.55 Earth days, Ganymede in 7.15 days and Callisto in 16.7 days. Considering how big Jupiter is, the four Galilean satellites are moving! Here's something you can do through a telescope. Make a drawing of Jupiter and the four Galilean satellites. A few hours later, make another drawing, then compare the two, you should note a change in position of one or two of the satellites!

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