print email comment close Astronomical Applications: Data Services URL: http://aa.usno.navy.mil/data/ Description: Provides "fundamental astronomical reference data, the position, brightness, and other observable characteristics of celestial bodies": Sun and Moon rise and set times, phases of the Moon, eclipses, planetary transits, positions of the Sun and Moon, the seasons (equinoxes, solstices, perihelion, aphelion), celestial navigation, and more. Enter data and produce your own table. Includes a navigational star chart. From the Astronomical Applications Department of the U.S. Naval Observatory. Publisher: U.S. Naval Observatory Extra Keywords civil twilight analemmas altitude azimuth Library of Congress Subject Headings: Astronomy Calendars Nautical astronomy LII Database Information: Record 5955 created by Carole Leita on 12/06/1998 Last modification on 06/01/2006 Published: 12/06/1998   Funding agency: California State Library LII Item ID: http://lii.org/cs/lii/view/item/5955