Amateur astronomers

  Almost 300 personal web pages of amateur and professional astronomers here

Share
Continue Reading Amateur astronomers

Astral nav another tutorial

This interactive site allows you to obtain all the astronomical information necessary to plot navigational lines of position from observations of the altitudes of celestial…

Share
Continue Reading Astral nav another tutorial

HMNAO

HMNAO also produces astronomical data suitable for a wide range of users, including professional and amateur astronomers, mariners, aviators, surveyors, the armed forces, lawyers, religious…

Share
Continue Reading HMNAO