Explanatory Supplement to the Astronomical Almanac


Book Description

This well-schooled text provides a detailed description of how to perform practical astronomy or spherical astronomy. It is an authoritative source on astronomical phenomena and calendars.




Astronomical Almanac for the Year 2022


Book Description

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.The Astronomical Almanac is a joint publication of the U.S. Nautical Almanac Office, United States Naval Observatory (USNO), in the United States and Her Majesty's Nautical Almanac Office (HMNAO), United Kingdom Hydrographic Office (UKHO), in the United Kingdom. This annual publication contains precise ephemerides of the Sun, Moon, planets, and satellites, data for eclipses and other astronomical phenomena for a given year, and serves as a world-wide standard for such information.










The History of Modern Astronomy in Japan


Book Description

This book considers the history of modern astronomy and astrophysics in Japan by comparing with the development of astrophysics in western countries. Astrophysics essentially arose in three separate fields: astronomical spectroscopy, stellar structure, and survey of celestial objects. This book introduces readers to the state of astronomy back to the Tokugawa era (18th – 19th centuries), when the chief task of astronomers was limited to the calendar making. With the so-called Meiji revolution (1868), the situation drastically changed. The Meiji Government promoted the modernization of Japan by hiring numbers of foreign instructors in political, social, and cultural affairs, including Construction of Observatory and University. Then the foreign studies of Japanese researchers lasted for many years. After the Second World War, Japan experienced great social and economical growth allowing the constructions of large optical, radio, and space instruments. With this background astrophysics progressed and eventually flourished. The book ends by highlighting Japanese contributions to international collaboration up to the early 21st century. Readers of this book will understand how astrophysics has grown into one of the major sciences in Japan, and how the works of individual astronomers are contributing to the global advancement of knowledge of the universe.