Astronomical Almanac


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Astronomical Almanac

(ass-trŏ-nom -ă-kăl) The ephemeris prepared jointly since 1981 by the United States Naval Observatory, Washington DC, and the Royal Greenwich Observatory in the UK. It replaced both the UK Astronomical Ephemeris and the American Ephemeris and Nautical Almanac, published separately in the UK since 1767 and in the USA since 1855.

astronomical almanac

[‚as·trə′näm·ə·kəl ′ȯl·mə‚nak]
(astronomy)
A publication giving the tables of coordinates of a number of celestial bodies at a number of specific times during a given period.
References in periodicals archive ?
Ring tilt angles are from the Astronomical Almanac (2013, 2014).
Naval Observatory's Astronomical Almanac routinely add 2 percent to the radius of Earth's umbra in their eclipse predictions.
Explanatory supplement to the Astronomical Almanac, 3d ed.
This results in totality along the entire track, hence in the Astronomical Almanac this eclipse is classified as total.
The editor also includes a useful glossary of terms (many of them scientific and astronomical in nature), reproductions of illustrations, and the astronomical almanac that accompanied the original manuscript.
Bosanquet sees the origin of the popular almanac in its common form as the combination of the traditional astronomical almanac, the prognostication, and the calendar; the earliest recorded example is from 1539 (Bosanquet Aa.
The data contained in the SkyGuide were adapted from: the Astronomical Almanac for 2010 and other publications of the United States Naval Observatory, SkyMap Pro 8 (C A Marriott), Stellarium 0.
The publishers of the Astronomical Almanac offer utility pages for calculating solar and lunar circumstances and for granting access to the atomic time of the USNO Master Clock.
The data contained in the SkyGuide were adapted from: the Astronomical Almanac for 2009 and other publications of the United States Naval Observatory, SkyMap Pro 8 (C A Marriott), Stellarium 0.
The observatory remains home to an annual astronomical almanac.
Most values for the solar phase angle and all values of the ring tilt angle are from The Astronomical Almanac (9, 10).
The Astronomical Almanac for the Year 1997, Nautical Almanac Office (U.