Astronomical Calendar 2010

The Astronomical Calendar has been published continuously since 1974, and is now used by about 20,000 amateurs, telescope-owners, clubs, teachers, planetariums, libraries, and just people that enjoy the sky in over 100 countries.An introduction explains how to use the various components of the book and, if you are a beginner, what to select at first (since there are so many levels of information). For each month there is a large map of the evening sky; facing it, a diary of 40 or so events, many with paragraph-long descriptions.Other features on the monthly pages are diagrams of where the planets are in their orbits, "Constellation Clues," "Telescopic Tour" (coordinates of selected objects findable in the month), "Observer's Highlights," and sketches of the most striking sky scenes. Supplementary sections include Highlights of the Year, The Sun, The Moon, Special Moons, Young Moon and Old Moon, Eclipses, Conjunctions, each of the planets, Meteors, Asteroids, Comets, Spaceflight, Deep-Sky Profiles, Light Pollution, Glossary, Magnitude and Elongation, Rising and Setting, Quick Reference, and a colored centerfold all-sky map.Some features are contributed by experts Fred Schaaf, Clifford Cunningham, Alastair McBeath, Alan Hale, Joe Rao, and Richard Nugent.