Download or read book Air Almanac 2019 written by Government Publications Office and published by Department of the Navy. This book was released on 2018-07-03 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Air Almanac contains the astronomical data required for air celestial navigation. The CD-ROM contains the same data found in the previously published book. It provides the following data tabulated at 10-minute intervals to a precision of 1 arcminute: the Greenwich hour angle and declination of the Sun, Moon, and three navigational planets; the Greenwich hour angle of Aries; rise and set times of the Moon for a range of latitudes; and other data. Each edition also contains sky diagrams for each month; sunrise, sunset, and twilight tables; and positions of the navigational stars. The data are produced in collaboration between The U.S. Naval Observatory in the U.S. and Her Majesty's Nautical Almanac Office (HMNAO) in the UK. HMNAO maintains the copyright on the material it produces. Related products: Current Year-- Air Almanac 2018 -- CD-ROM format can be found here: https://bookstore.gpo.gov/products/air-almanac-2018-cd-rom Astronomical Almanacs and Navigation Guides product collection can be found here: https://bookstore.gpo.gov/catalog/transportation-navigation/almanacs-nav... Aviation resources collection can be found here: https://bookstore.gpo.gov/catalog/transportation-navigation/aviation Other products produced by the U.S. Naval Observatory can be found here: https://bookstore.gpo.gov/agency/united-states-naval-observatory-usno