How big is the Earth compared to Ganymede?

How big is the Earth compared to Ganymede?

Size, Mass and Orbit: With a mean radius of 2634.1 ± 0.3 kilometers (the equivalent of 0.413 Earths), Ganymede is the largest moon in the solar system and is even larger than the planet Mercury. However, with a mass of 1.4819 x 1023 kg (the equivalent of 0.025 Earths), it is only half as massive.

Are there moons bigger than Earth?

At 1/81 mass of Earth, our Moon is relatively huge; only Charon, the moon of Pluto, exceeds it. Charon is 1/10 the mass of Pluto, making the two a double dwarf planet. All other moons in the solar system are thousands of times less massive than their parent planets.

What planet is bigger than Ganymede?

A composite of ultraviolet, optical, and infrared light was used to construct this view. 2.) Titan: Saturn’s enormous satellite gives Ganymede a run for its money as the largest non-planet of all. Titan also surpasses Mercury in size, but has little else in common with virtually airless Ganymede.

Is Ganymede larger than Mars?

Jupiter’s moon Ganymede is the largest satellite in the solar system. Larger than Mercury and Pluto, and only slightly smaller than Mars, it would easily be classified as a planet if were orbiting the sun rather than Jupiter.

Can human live in Ganymede?

Yes, it’s very very unlikely that we have substantial life processes occurring on the surface of Ganymede. But when we look at the atmosphere in detail — as a new study recently did with archival data from Hubble — we find that Ganymede’s atmosphere has hydrosignatures in it: copious amounts of water vapor.

Is Titan bigger than Earth?

Because Titan is less massive than Earth, its gravity doesn’t hold onto its gaseous envelope as tightly, so the atmosphere extends to an altitude 10 times higher than Earth’s—nearly 370 miles (600 kilometers) into space.

Can humans live on Titan?

Habitability. Robert Zubrin has pointed out that Titan possesses an abundance of all the elements necessary to support life, saying “In certain ways, Titan is the most hospitable extraterrestrial world within our solar system for human colonization.” The atmosphere contains plentiful nitrogen and methane.

Can 4 moons fit in Earth?

The Moon is the fifth largest moon in the entire Solar System. It is 3,474 km from one side to the other (its diameter). This is about a quarter of the diameter of the Earth. This means 4 Moons would fit side by side across the Earth.

Can you breathe on Titan?

Titan’s nitrogen atmosphere is so dense that a human wouldn’t need a pressure suit to walk around on the surface. He or she would, however, need an oxygen mask and protection against the cold—temperatures at Titan’s surface are around minus 290 degrees Fahrenheit (minus 179 Celsius).

What is the 2 heaviest planet?

Saturn is the sixth planet from the Sun and the second-largest planet in our solar system.

What is the 1 largest planet?

Fifth in line from the Sun, Jupiter is, by far, the largest planet in the solar system – more than twice as massive as all the other planets combined.

What are the 3 biggest planets?

Planet	Volume Rank	Orbit Volume Rank
Mars	3	2
Jupiter	9	8
Saturn	8	9
Uranus	7	6

Planet	Volume Rank	Orbit Volume Rank
Mars	3	2
Jupiter	9	8
Saturn	8	9
Uranus	7	6

Can you walk on Ganymede?

Ganymede, the biggest moon in the Solar System, has surface gravity slightly less than our Moon’s, and should be quite walkable.

Could Ganymede orbit Earth?

Is Pluto or Ganymede bigger?

Ganymede has a radius of 1,635 miles (2,631 kilometers) and is the largest moon in our solar system. It’s bigger than Mercury and Pluto.

Can a man live on Jupiter?

Jupiter’s environment is probably not conducive to life as we know it. The temperatures, pressures, and materials that characterize this planet are most likely too extreme and volatile for organisms to adapt to.

Is Titan bigger than Mars?

Titan is actually larger than the planet Mercury and is almost as large as Mars.

Can a human survive on Pluto?

Potential for Life. The surface of Pluto is extremely cold, so it seems unlikely that life could exist there. At such cold temperatures, water, which is vital for life as we know it, is essentially rock-like. Pluto’s interior is warmer, however, and some think there could even be an ocean deep inside.

Is Earth’s moon bigger than Ganymede?

It is slightly more massive than the second most massive moon, Saturn’s satellite Titan, and is more than twice as massive as the Earth’s Moon. It is larger than the planet Mercury, which has a diameter of 4,880 kilometres (3,030 mi), but is only 45 percent of Mercury’s mass.

How long can you survive on Ganymede?

100 years times 365 days gives you 36,500 days in a human lifetime. Since we’re doing an order of magnitude estimate, we’ll pretend 36,500 is equal to 10,000. So if we lower the radiation level on Ganymede by 10,000 times, we can live indefinitely on it’s surface.

Why is Ganymede geologically dead?

Ganymede & Callisto are mixed ice & rock, low- density moons. They lack internal heat and are geologically inactive.

Can humans breathe on Europa?

Europa has an extremely thin oxygen atmosphere — far too thin for humans to breathe.