Index of Keith's
Astrolabe Information pages

astrolabe: astro.html
equinoctial astrolabe: equi.html
spherical astrolabe: sph.html
universal astrolabe: univ.html

spherical trigonometry: trig.html

astrolabe back: back.html
ecliptic circle: ecli.html
hemisphere: lat.html#hemi
initial settings: init.html
keyboard keys: keys.html
latitude: lat.html
longitude and time zone: long.html
mansions: mans.html
plate: plate.html
prayer lines: pray.html
precession: prec.html
printing: print.html
rete: rete.html
sigmoid diagrams: sig.html
time and date: time.html
twilight: twil.html
unequal hours: unequ.html
viewpoint: view.html