The Orionid Meteor Shower Peak will be on 20 Oct between 12:40 and 2:40am. The Orionids are caused by the Earth passing through remnants left behind Halley's comet. Find a very dark spot and enjoy the best chances to see the meteors after midnight, after the moon has set. The meteors will appear to radiate away from the constellation of Orion, though they can appear anywhere in the sky.