core.setObserverLocation(-77.08, 38.89, 35, 1, "Arlington, VA", "Earth");
core.setTimeRate(0.0);
core.wait(10);
var newdate = (new Date()).getTime();
date = new Date(newdate);
var today = date.getDate();
date.setMinutes(0);
date.setSeconds(0.0);
core.wait(10);
core.moveToAltAzi(90, 0);
core.wait(10);
for (i = 0; i < 24; i++){
 if (i<10){date.setDate(today+1);} // In the summer in the Eastern time zone we want
 date.setHours(i);                 // maps from 6 am our time to 5 am the following day.
 core.setDate(date.toISOString().replace('Z', ''));
 core.wait(5);
 core.screenshot("base", false,  "/home/lee/www/arlplanet/skymaps/"+i);
 GridLinesMgr.setFlagAzimuthalGrid(true);
 core.wait(1);
 core.screenshot("grid", false,  "/home/lee/www/arlplanet/skymaps/"+i);
 GridLinesMgr.setFlagAzimuthalGrid(false);
 ConstellationMgr.setFlagLines(true);
 ConstellationMgr.setFlagLabels(true);
 core.wait(1);
 core.screenshot("constellations", false,  "/home/lee/www/arlplanet/skymaps/"+i);
 ConstellationMgr.setFlagLines(false);
 ConstellationMgr.setFlagLabels(false);
 ConstellationMgr.setFlagArt(true);
 core.wait(1);
 core.screenshot("constellationArt", false,  "/home/lee/www/arlplanet/skymaps/"+i);
 ConstellationMgr.setFlagArt(false);
}
core.quitStellarium();