How old is the Sun?

Question

I'm vietnamese. I need to some frends. I live in Viet Nam. Who?

Answer 1

The Sun is 43 years old.

http://www.birthdaynewspapers.co.uk/sun_newspaper_history.htm

Answer 2

The Sun is a British national newspaper that came out in 1964 so therefore is 43 years old.

Answer 3

Nuscorp, Kate, and Dawg all have good answers and I won't bother retyping what they said as it agrees with all the texts I have at home. For all general purposes you can figure that the Sun is 4 1/2 Billion Years old.

I did not see in your question any information about your Astronomy interests...Do you have and use a telescope to look at the moon and stars, etc.

If you seek further information on the Sun, you might wish to look at a wonderful web site developed by Cornell University...

Do a search on the Internet using the key words

Curious About Astronomy

That will lead you to Cornell University's Web Site, and
from there you can click on the tabs for The Sun and the Solar System, etc., etc. They also have some fairly amazing photos and sketches for you to review and lots of links. There is a wonderful set of Questions and Answers you can review as your time permits also.

Regards,
Zah

Answer 4

Based on the analysis of radioisotopes from meteorites, which decay at a slow and constant rate, the Solar system is some 4.6 billion years old. The Sun probably formed first when the center of the Solar nebula collapsed into a rapidly spinning protostar with the planets forming out of the remainder within a few million years after the birth of the Sun. Based on our understanding of nuclear fusion, the observed energy output of the Sun and it's mass, the Sun has about 10 billions years worth of hydrogen in it's core. Therefore it has used half of it's fuel supply and is middle-aged as stars go.

Answer 5

The Sun is abut 4.5 billion years old now. It is about 300 degrees hotter and abput 6% greater in radius than when it was first born. It will continue to increase,in temperature, luminosity and radius at about the same rate for about another 5 billion years. At that point the luminosity will be twice its present value and and will be 40% larger in radius. At this point there will be no more hydrogen in the core, forcing energy tot ake place in whatis called a hydrigen burning shell. The core wil starts to contract as the outer layes expand. Over the next 1.5 billion years the surface should enlarge to about 3.3 times its present size while the surface cools to 4,300 degrees Kelvin. Next the Sun will rapidly swell and become a red giant star. Within the next 250 million years it will expand to 100 times its present size and 500 times more luminous. When the core temparture reaches 100,000,000 degrees Kelvin, all the rest of the helium will fuse into carbon in one big bang, causing one third of the solar envelope to be thrown out into space. After this the Sun will become brighter and the outer layers will be blown out into space in the form of a a dense solar wind known as a planetary nebula. At that point all that will be left is a white dwarf.

Answer 6

The sun gets energy from thermonuclear reactions near its centre. These reactions change hydrogen into helium. They release so much energy that the sun could shine for about 10 billion years with little change in its size or brightness. Scientists estimate that the sun is about 4,600,000,000 years old, and that it probably will shine for at least another 5,000,000,000 years.

Answer 7

The Sun is about half way through it's life, at around 4 billion years (give or take a few million).

Answer 8

The sun began to coalesce from a hydrogen field that was dynamically disturbed by a mass of rocky material that was ejected by a super-nova some 4.5 billion years ago.

Answer 9

The Sun is as old as the creation of the earth or the beginning of the world.

Answer 10

Since the begining of time. Read the Bible and in Gensis it tells you God made Everything in six days. Hebrew word Day has a variety of meanings Means one day is thousand years in length.