The Orionid meteor shower will peak Wednesday. Linked to Halley's Comet, it lights up the night sky. Best viewing early morning. Halley's Comet, last seen in 1986, leaves debris causing the shower. Stargazers should find dark spots away from city lights. The Orionid meteor shower is an annual event that is caused by Halley's Comet. It illuminates the night sky with its shooting stars. The ideal time to watch the Orionid meteor shower is early morning. Halley's Comet, which was last visible in 1986, leaves debris causing the shower. Stargazers should find dark spots away from city lights. This will give a more clear view of the Orion meteor shower.