The Astronomical Almanac For the Year 2010 provides astronomical data, mainly in tabular form, for use in navigation, surveying, scientific research, litigation, accident reconstruction, and many other activities. Issued annually, the almanacs contain data for one year. It is prepared jointly by the U.S. Naval Observatory and Her Majesty's Nautical Almanac Office, United Kingdom Hydrographic Office.

ABOUT STEPHANIE TROELLER & MARY KATE MELLOWCo-Authors, friends, business partners, and fellow moms, Stephanie Troeller and Mary Kate Mellow are the producers of the "Prima Princessa Presents" series of ballet DVDs for children. They are passionate about everything ballet. You can visit them online at www.PrimaPrincessa.com. STEPHANIE studied dance in Paris, France at Marcel Marceau's International School of Mimodrame of Paris and at Martha Graham in NYC. She graduated from Columbia University, Barnard College, and went on to pursue a career in cartoons. Stephanie is the writer of her self-syndicated comic "Relationstrips" and the proud designer of the fabulous ballerina princess "Prima Princessa." She lives in Montclair, NJ with her husband, four great kids, and puppy, Max. MARY KATE is a dance lover and former jewelry designer. Her jewelry has appeared on the cover of Seventeen magazine and in Women's Wear Daily. Mary Kate graduated from Wesleyan College in Connecticut. She lives Montclair, NJ with her husb

This is the first book to present the science and instruments of NASA’S MESSENGER space mission. The articles, written by the experts in each area of the MESSENGER mission, describe the mission, spacecraft, scientific objectives, and payload. The book is of interest to all potential users of the data returned by the mission, to those studying the nature of Mercury, and by all those interested in the design and implementation of planetary exploration missions.

Astrometry encompasses all that is necessary to provide the positions and motions of celestial bodies. This includes observational techniques, instrumentation, processing and analysis of observational data, reference systems and frames, and the resulting astronomical phenomena. Astrometry is fundamental to all other fields of astronomy, from the pointing of telescopes, to navigation and guidance systems, to distance and motion determinations for astrophysics. In the last few decades, new observational techniques have enabled improvements in accuracy by orders of magnitude. Starting from basic principles, this book provides the fundamentals for this new astrometry at milli- and micro-arcsecond accuracies. Topics include: basics of general relativity; co-ordinate systems; vectors, tensors, quaternions, and observational uncertainties; determination and use of the celestial and terrestrial reference systems and frames; applications of new observational techniques; present and future star catalogues and double star astrometry. This comprehensive reference will be invaluable for graduate students and research astronomers.