Which is the largest planet in the Solar System?

The largest planet in our solar system by far is Jupiter, which beats out all the other planets in both mass and volume. Despite its size, it only has a density of 1.326 g/cm3, which is less than one fourth of Earth's density. The low density is one way scientists are able to determine that it is made mostly of gases and probably does not have a solid core. Jupiter is not the largest possible planet in the Universe. TrES-4 is about 1.4 times the size of Jupiter. Scientist theorize that a gas gain could get 15 times the size of Jupiter before it began deuterium fusion, making it a brown dwarf star.

More Info: en.wikipedia.org

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39 Comments

Rob Farr

Many would see this as too easy a question, but it should be remembered that nobody knows everything, and one of the most notable aspects of this site is the opportunity that it provides for us all to learn and expand our knowledge.

Samuel Johnson

The sun is not a planet. ...the sun is a star.

Cheryl McMeekin

Very well said Rob Farr, I myself learn something new everyday.

Albert

Even 99% of kids also know. But thanks for the points.

Irene Townsend

Samuel Johnson, The Sun was not an option, so why the comment.

allysweets

Haha, James Kaighin,

allysweets

Was that one of the answer options Samuel Johnson?

d p catalano

Hope to buy land there some day. 😆

Don Racette

Criona Walsh DOGgone it then why didn't you tell me the answer.

James Kaighin

Bob Alexander; blah, blah, blah.

James Kaighin

Well said, young Rob!

Jim Adams

It’s not called the god of the planets for nothing.

Diane Lynn Kinsman

Said right one.

Christopher John Goddard

Wayne Durham, that's not nice rudeness has nothing to do with national origin, not all British people are rude any more than all Americans are know-it- all's. You seem to think rather highly of yourself without much cause.