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Astronomical Numbers
Thomas Wm. Hamilton’s latest book Astronomical Numbers provides most of the commonly referenced and used numbers in astronomy. This includes the diameters of the sun, all the planets, and major moons, distances of orbits, magnitude scales, frequency of eclipses, the five different kinds of lunar month, and more. To maximize usefulness, all values are in both English units (e.g. miles) and metric (e.g. kilometers), and provide conversions for units commonly used in astronomy, such as the astronomical unit, lightyear, and parsec. Says the author, “There is a real need for a convenient and quick reference for all this astronomical data, which is scattered and time consuming to find.”
Useful Star Names
The following review appears in The Planetarian, the journal of the International Planetarium Society, December 2011, Vol. 40, No. 4, pages 62-63, written by the book review editor, April Whitt, of the Fernbank Planetarium in Atlanta, GA:Useful Star Names; With Nebulas and other Celestial FeaturesThomas Wm. Hamilton, Strategic Book Group, Durham, Connecticut, 2011, ISBN 978-1-61204-614-3“I wanted to let you know about this volume with the descriptive title in time for stocking your gift shops and book stores for the new year. It is, indeed, full of useful star names. And not just the usual Greek letters or catalog numbers, either.The author introduces the work as derived from “my experie...
