Download or read book Astronomical Almanac for the Year 2015 and Its Companion, The Astronomical Almanac Online written by Government Publications Office and published by Government Printing Office. This book was released on 2014-03-21 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared jointly with Her Majesty's Nautical Almanac Office, United Kingdom Hydrographic Office. Designed in consultation with other astronomers of many countries. Provides current, accurate astronomical data for use in the making and reduction of observations and for general purposes. The Astronomical Almanac Online extends the printed version by providing data best presented in machine-readable form. Online data are provided for several years. Contains data for astronomy, space sciences, geodesy, surveying, navigation, and other applications. Also used for navigation by air and water.