"Heliometer" Quotes from Famous Books
 ... that the nearest star, on the same scale, will be more than four miles away, and scarcely one out of a million will be at a less distance than ten miles. It is only by the most wonderful perfection both in the heliometer, the instrument principally used for these measures, and in methods of observation, that any displacement at all can be seen even among the nearest stars. The parallaxes of perhaps a hundred stars have been determined, with greater or less precision, ...
— Side-lights on Astronomy and Kindred Fields of Popular Science • Simon Newcomb |
