An interest in astronomy may strike early in life or later. Regardless of what lit the fire of that interest, you need ...

The article offers a free downloadable PDF guide for beginner astronomers. The guide provides advice on observing celestial objects, including the Moon, planets, stars, and nebulae. It includes ...

THIS text-book is designed for the considerable class of technical students who need to make practical applications of the methods of spherical astronomy, but cannot devote to the subject the time ...