Activity from this meteor shower is visible from about July 23 until August 22. At the time of Maximum on August 12/13 (J2000 solar longitude=139.7 deg), the radiant is located at RA=47 deg, DECL=+57 deg. The hourly rate typically reaches 80, although some years have been as low as 4 and as high as 200. The meteors tend to be very fast, with an average magnitude of 2.3, and about 45% leave persistent trains. The radiant advances by a rate of 1.40 deg/day in RA and 0.25 deg/day in DECL.

NASA Space Science News. Meteor Shower Links.

PERSEID FAQ LIST Subject: Perseid Meteor Shower, 1994. ISSUED BY: The International Meteor Organization (IMO), August, 1994. Below is the Frequently Asked Questions (FAQ) list for the Perseid meteor shower as prepared by the International Meteor Organization (IMO). Contributors include Peter Brown, Malcolm Currie, Marc Gyssens, Juergen Rendtel, and Rainer Arlt. (email addresses at bottom).