How Big Can A Planet Get

Is there a limit to how big a planet can be?

A planet can be no bigger than about 10 times the mass of Jupiter an astrophysicist has concluded. Of course that’s pretty darned massive. Jupiter carries almost 318 times the mass of Earth making the most massive planets possible the equivalent of nearly 3 200 Earths.

What is the biggest possible planet?


Jupiter is 11 times the diameter of Earth and it turns out that is about as large as any planet can be! If you kept dumping more matter on Jupiter it would not get any larger. Instead gravity would crush its mass together more tightly and efficiently.

What happens if a planet gets too big?

If the hypothetical super-Earth were even bigger say 10 times its current mass dramatic changes could start happening in Earth’s interior. The iron core and liquid mantle would also be 10 times larger and with more gravity acting on a larger mass the pressure beneath Earth’s surface would increase.

Is it possible for a planet to be bigger than a star?

If the fraction of them that has a gas giant orbiting them is small that could still mean a lot of such systems exist in total. So there you go. A rare actual answer in astronomy: Yes a planet can be bigger than its star!

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Why is Jupiter so massive?

Jupiter is so big because it is the oldest planet in our Solar System. … The planets and the Sun formed through the swirling gas and dust from an interstellar medium known as the solar nebula. Gravity pulled the swirling gas and dust together and resulted in either the Sun or the planets that followed.

What’s the largest star in the Universe?

UY Scuti
The largest known star in the universe is UY Scuti a hypergiant with a radius around 1 700 times larger than the sun. And it’s not alone in dwarfing Earth’s dominant star.Jul 25 2018

Is any planet bigger than the Sun?

Explanation: To begin with planets as that is the easiest question to answer there are no planets bigger than the Sun or even close to the size of the Sun. At about 13 times the mass of Jupiter a planet becomes what is referred to as a “brown dwarf”.

Which planet is made of gas?

Gas planet facts

The gas planets are Jupiter Saturn Uranus and Neptune. They are the furthest planets from the Sun. They each have many moons. They’re balls of hydrogen and helium – you couldn’t stand on the surface of the planet because it’s not solid.

How big is the moon?

1 737.4 km

Can the earth lose gravity?

Over the next few billion years Earth’s gravity will change by tiny amounts because of several events. As the sun expands the oceans will boil off into space reducing the planet’s mass and therefore cutting the force of its gravity. But Earth’s core will also cool so the planet will experience thermal contraction.

Can we breathe without gravity?

As long as the air around us is thick enough we can breathe regardless of gravity. On Earth gravity is what holds our atmosphere. When astronauts go into space they can breath because their space ships and space suits keep the air around them even though gravity is very weak.

What if Earth was 2 times bigger?

If Earth’s diameter were doubled to about 16 000 miles the planet’s mass would increase eight times and the force of gravity on the planet would be twice as strong. Life would be: Built and proportioned differently. … This story was provided by Life’s Little Mysteries a sister site of

Is a universe bigger than a galaxy?

Galaxies come in many sizes. The Milky Way is big but some galaxies like our Andromeda Galaxy neighbor are much larger. The universe is all of the galaxies – billions of them! … Our Milky Way Galaxy is one among the billions of galaxies in our Universe.

Is a nebula bigger than a galaxy?

Simply put the main difference between galaxies and nebulae are an extreme difference in size as well as their basic structure. A nebula is a cloud of dust and gas usually tens to hundreds of light years across. A galaxy is much larger — usually thousands to hundreds of thousands of light years across.

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Is a comet bigger than an asteroid?

They are characterized by having orbits lying always within the region of the outer planets. The sizes of those discovered so far is comparable to the larger asteroids and hence they are much bigger than a typical cometary nucleus.

Can you land on Saturn?

Surface. As a gas giant Saturn doesn’t have a true surface. The planet is mostly swirling gases and liquids deeper down. While a spacecraft would have nowhere to land on Saturn it wouldn’t be able to fly through unscathed either.

What planet has over 1000 rings?


Saturn is surrounded by over 1000 rings made of ice and dust. Some of the rings are very thin and some are very thick. The size of the particles in the rings range from pebble-size to house-size. Scientists believe that the particles came from the destruction of moons circling the planet.

Can you fly through a gas planet?

However even if Jupiter and Saturn were 100% gas you couldn’t fly through them. Enormous density pressure and temperature. A gas mass of several tens of Earth masses will collapse under its own gravity to enormous central densities temperatures and thus static pressures.

How big is the biggest black hole?

Ton 618 the largest ultramassive black hole appears at the very end of the video which at 66 billion times the mass of the Sun is going to weigh very heavily on how we daydream about the cosmos moving forward.

What is the closest star to Earth?

The closest star to Earth is a triple-star system called Alpha Centauri. The two main stars are Alpha Centauri A and Alpha Centauri B which form a binary pair. They are about 4.35 light-years from Earth according to NASA.

What is the hottest planet?

Planetary surface temperatures tend to get colder the farther a planet is from the Sun. Venus is the exception as its proximity to the Sun and dense atmosphere make it our solar system’s hottest planet.Jan 30 2018

What planet rains diamonds?

Deep within Neptune and Uranus it rains diamonds—or so astronomers and physicists have suspected for nearly 40 years. The outer planets of our Solar System are hard to study however. Only a single space mission Voyager 2 has flown by to reveal some of their secrets so diamond rain has remained only a hypothesis.

How old is the earth?

4.543 billion years

How many galaxies are there?

The Hubble Deep Field an extremely long exposure of a relatively empty part of the sky provided evidence that there are about 125 billion (1.25×1011) galaxies in the observable universe.

Are there ice planets?

Although there are many icy objects in the Solar System there are no known ice planets (though Pluto was considered an ice planet until its reclassification in 2006).

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How many Earths can fit in the Sun?

1.3 million Earths
If you divide the volume of the sun by the volume of the Earth you get that roughly 1.3 million Earths can fit inside the sun.

Which planet has the shortest day?


Jupiter is the fastest spinning planet in our Solar System rotating on average once in just under 10 hours. That is very fast especially considering how large Jupiter is. This means that Jupiter has the shortest day of all the planets in the Solar System.

How cold is the Moon?

The average temperature on the Moon (at the equator and mid latitudes) varies from -298 degrees Fahrenheit (-183 degrees Celsius) at night to 224 degrees Fahrenheit (106 degrees Celsius) during the day.

How big does Earth look from Moon?

Given the Earth’s greater size it naturally appears larger in the lunar sky. From the perspective of an astronaut standing on the Moon’s surface Earth varies from 1.8° to 2° in apparent diameter as the Moon travels from perigee (closest approach) to apogee (farthest) during its 27.3-day orbit.

What is the average size of the sun?

1.3927 million km

What if gravity stopped for 1 second?

When gravity disappears for 1 second the outwards force balanced by the gravity would be released causing a massive explosion. In other star systems with more immense stars and natural phenomena such as pulsars and and especially black holes the explosions and expansions would be greater.

What would happen if the Earth stopped spinning?

At the Equator the earth’s rotational motion is at its fastest about a thousand miles an hour. If that motion suddenly stopped the momentum would send things flying eastward. Moving rocks and oceans would trigger earthquakes and tsunamis. The still-moving atmosphere would scour landscapes.

What would happen if there was no moon?

The moon influences life as we know it on Earth. It influences our oceans weather and the hours in our days. Without the moon tides would fall nights would be darker seasons would change and the length of our days would alter.

Are there dead bodies in space?

Remains are generally not scattered in space so as not to contribute to space debris. Remains are sealed until the spacecraft burns up upon re-entry into the Earth’s atmosphere or they reach their extraterrestrial destinations.

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