Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An astronomical constant is a physical constant used in astronomy. A formal set of constants, along with recommended values, was defined by the International Astronomical Union (IAU) in 1976, and a new set of recommended values was produced in 1994. This set of constants is widely reproduced in publications such as the Astronomical Almanac of the United States Naval Observatory and Her Majesty's Nautical Almanac Office.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.