
Leonid meteor shower quick facts:
When: Nov. 3 - Dec. 2
Peak: Nov. 17-18
Comet of origin: 55P/Tempel-Tuttle
Zenithal Hourly Rate (ZHR): 15
(The number of meteors a single observer would see in an hour of peak activity with a clear, dark sky and the radiant at the zenith).
The Leonid meteor shower is active from Nov. 3 to Dec. 2 this year and will peak on Nov. 17.