Maps for 
<a href="http://globe.gov/GaN">Globe at Night</a>, 
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).

<address>
<a href="http://globe.hvezdarna.cz">Jenik Hollan, 
N. Copernicus Observatory and Planetarium in Brno</a></address>