Hello, I am an amateur astronomer. I also enjoy working with sound and harmonic ratios. My question is, does sound emanate from the sun? Would such a sound wave create nodes that would allow for a planet's distance from the sun?
There are definitely some sound waves propagating through the Sun's interior. Because of the composition of the Sun (basically, a big ball of gas), sound waves can propagate quite easily in it. The study of such waves is called helioseismology. By observing oscillations at the surface of the Sun, astronomers try to figure out the patterns of the waves inside, which tells them a lot about the internal structure of the Sun (the same can be applied to other stars as well).
However, this doesn't mean that there is some sound coming from the Sun! Unlike light waves, sound waves cannot travel in vacuum: they need a medium in which they can travel. So since space is very close to empty, sound waves cannot propagate.
Last updated Feb. 10th 2016