ABSTRACT
The nearest star to our solar system which is at present known is in the constellation called the Centaur, so far south that people never see it in England. The sun is a fairly typical member of a large class of natural objects. Most results of scientific research of this kind. They check up on one another, and make nature appear more natural. The reason for the close relation between mass and luminosity was largely explained by Eddington, but is a little too complicated to give here. The reason why no stars are much larger than the sun is a simple one. Once the relation between mass and luminosity for the stars of known distance and mass was known, it was applied to the stars in general. One can calculate the distance of any Cepheid variable when one knows its period. Cepheid variables are very bright stars enabling us to measure distances much too great for the parallax method.
