Send a comment on this item to LII:

Send a comment on this item to LII staff, who on weekdays will usually reply within 24 hours.

Astronomical Applications: Data Services
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.
http://aa.usno.navy.mil/data/

Asterisk * indicates required field.


*

We will not sell or provide your email address to anyone else.
*
*