Maps for Globe at Night, Orion above SW horizon. Beginning of astronomic
night (Sun at -18°), two hours after sunset at latitude 50°, when
Orion's belt is at h=30°. Very clear air assumed (extinction in zenith
just 0.2 mag), or a more turbid one for one set. Maps were computed
using map.php in a directory two levels up, several rows within *.eps
have been edited manually. 45-75.pdf and 45-75cz.pdf contain Sirius as
well (important for finding Orion under very polluted skies).
J. Hollan
Click for a printable pdf: