Question:
what is the diameter of the sun?
Matt
2011-05-08 07:06:22 UTC
what is the diameter of the sun? i want to know and i cant be bothered to search it. besides, its more fun this way because people can discuss their views :)
Six answers:
techy
2011-05-08 07:15:35 UTC
The diameter of the Sun is 1.4 million kilometers or 870,000 miles.



Did that answer your homework question? Good. But let’s take a few minutes and really put this enormous number into scale.







The Sun is so massive that it accounts for 99.8% of all the mass in the Solar System. You could fit more than 1.3 million Earths inside the Sun, and still have room to spare.



But this article is about diameter, so let’s compare the diameter of the Sun to other objects in the Solar System. The diameter of the Sun is 109 times the diameter of the Earth. It’s 9.7 times the diameter of Jupiter. Really, really big.



That’s a big Sun, but it doesn’t hold a candle to some of the largest stars in the Universe. The biggest star we know of is called Canis Majoris, and astronomers think it could be 2,100 times the size of the Sun.



Want some more info?



Diameter of the Sun in kilometers: 1,392,000 km

Diameter of the Sun in miles: 865,000 miles

Diameter of the Sun compared to Earth: 109 Earths



Here’s the article where we investigate the biggest star in the Universe, and here’s an article that compares the Sun and the Moon. How old is the Sun? 4.6 billion years.



Here are some more facts about the Sun from the physics factbook, and NASA’s Worldbook page on the Sun.



We have recorded an episode of Astronomy Cast just about the Sun called The Sun, Spots and All.
Erika
2017-01-17 14:09:56 UTC
The diameter of the sunlight is 865,000 miles or a million.39 million in kilometers, on a similar time as the Earth's diameter is 12, 765.2 kilometers. The sunlight's diameter is a hundred and ten situations the diameter of the Earth.
anonymous
2011-05-08 07:08:31 UTC
The Sun is 870,000 miles/ 1.4 Million kilometers.
udaya k
2011-05-08 07:13:09 UTC
Sun cannot have a diameter even if it should be less than point. It is a burning mass without weight, without earth, without shape. One can only have an approximation from the visual shape it is giving from distance. Sun is a rotating ethereal burning gaseous mass. Whatever gives out life giving energy should be rotating. Without rotation it cannot keep that shape, without rotation no centripetal and centrifugal forces are possible for its sustainance and distribution of energy. The rotation therefore makes it seem round.
Alex C
2011-05-08 07:08:02 UTC
i doubt anyone can measure the sun w/o bursting into flames so the real number is a mystery or maybe some weird math will solve it :p
anonymous
2011-05-08 07:50:25 UTC
1,392,000 kilometers


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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