What is the entropy of the sun?

Answer 1

Humanity is unable to measure the total entropy of even the solar radiation, much less the entire entropy of the thermonuclear body that we call the Sun. However, estimates have been made.

It would be hard to give references without knowing the specific reasons for your interest in this topic, but you might find one or more of the following site useful:

Answer 2

A measurement of the disorder or randomness of a system. Entropy is symbolized by S and entropy change by DS. The entropy of a pure crystalline substance is 0 at absolute zero, and increases as the temperature increases. The second law of thermodynamics states that "every system left to itself will change to a position of maximum entropy".
www.sasked.gov.sk.ca/docs/chemistry/mission2mars/contents/glossary/e.htm

As stated by John von Neumann in conversation with Claude Shannon in 1949:
Nobody knows what entropy really is, so in a debate you will always have the advantage.

As stated by Frederic Keffer:
The future belongs to those who can manipulate entropy; those who understand but energy will be only accountants.

(The surface of the Sun is approximately at 5700 K, and the temperature of the Earth's surface is approximately 290 K. What entropy changes occur when 1000 J of thermal energy is transferred from the Sun to the Earth? Solution:
During the process the temperatures of the sun and the earth do not change appreciably. The change in the entropy of the sun is therefore DS = -1000 J/5700 K = -0,175 J/K. The change in the entropy of the earth is DS = 1000J/290 K = 3.448 J/K. The entropy of the sun-earth system increases by 3.27 J/K. )
http://en.wikipedia.org/wiki/Sun

Answer 3

Entropy is the slow dying of everything in the universe.

Answer 4

http://www.ncsu.edu/felder-public/kenny/papers/entropy.html... a good site on the subject of entropy