Now available in paperback
"Highly recommended to all persons seriously involved in
astronomical calculation. They surely will use it
--Sky & Telescope
The Explanatory Supplement provides a detailed description of how to perform practical astronomy or spherical astronomy. This completely revised and rewritten edition is an authoritative source on astronomical phenomena and calendars.
Although this paperback edition carries a 2006 copyright date, it is the same material published in 1992 hardcover edition.
*Hardcover edition is out of print