Is the Copernican System of Astronomy True? e-bog

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Astronomers say, in speaking of the distance of the sun, The determination of this distance is therefore one of the capital problems of astronomy, as well as one of the most difficult, to the solution of which both ancient and modern astronomers have devoted many efforts.