In astronomy, the Zenithal Hourly Rate (ZHR) of a meteor shower is the number of meteor an observer would see in one hour under a clear, dark sky (limiting apparent magnitude of 6.5) and if the radiant of the shower were in the zenith.
The rate which can effectively been seen is always lower and decrease as the radiant is closer to the horizon.
... it an official place among their
"exercises." John Wesley and John Newton put
it among the works that influenced them at their
conversion. General Gordon carried ...