Peak: December 14, 1923, around 03:00 UTC — up to about 150 meteors an hour under a dark sky. The Moon will be 41% lit: some moonlight, which will hide the fainter meteors. Meteors seem to come from Gemini; the debris is from asteroid 3200 Phaethon. The year's richest shower, with many bright meteors, visible from both hemispheres. Peak times and rates: the International Meteor Organization's working list.