An Introduction to Astronomy

Автор: Denison olmsted
Издательство: Robert B. Collins
Страниц: 358
Год: 1855
Размер: 20,8 МБ

THE great progress of astronomical discovery, during the *ast few years, has induced the author of this work to prepare, with much labor and expense, a new edition, which should fully exhibit the features of the science in their latest physiognomy. Since the stereotype edition was first published, in 1844, numerous and important discoveries have been made, both in the solar system and among the fixed stars. The dimensions of the planetary system have been nearly doubled by the addition of the planet Neptune ; the number of the Asteroids has been increased from four to twenty-seven ; interesting discoveries have been made in the Rings of Saturn, and an eighth member has been added to his retinue of satellites ; and the subject of Comets has received a new impulse by the appearance of the remarkable cornet of 1843...