Fourteen weeks in descriptive astronomy

Автор: J. Dorman Steele
Издательство: A.S. Barnes & Company
Страниц: 336
Год: 1875
Размер: 13,4 МБ

DURING the past few years great advances have been made in astronomical science. A new horizontal parallax of the sun has been established. This has materially altered the estimated distances, etc., of the planets. The sun is much nearer us than we supposed, and light has lost a little of its wonderful velocity. , Much additional information has been obtained concerning Meteors and Shooting Stars. The investigations connected with Spectrum Analysis have been especially suggestive.