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Astronomical Almanac

The Astronomical Almanac contains precise ephemerides of the Sun, Moon, planets, and satellites, data for eclipses, and other astronomical phenomena for a given year. Most data are tabulated at 1-day intervals. Also included are geocentric positions of the Sun, Moon, planets, and bright stars; heliocentric positions of the planets and their orbital elements; universal and sidereal times; daily polynomials for the Moon's position; physical ephemerides of the Sun, Moon, and planets; elongation times and differential coordinates of selected satellites of the planets; rise, set, and transit times of the Sun and Moon; eclipse data and maps; tables of reference data for various celestial objects; useful formulas, and other information.

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The Astronomical Almanac Online! 2020