The Solar Longitude (Abbrev: S.L., λ ☉) is 85.2 degrees, this value is the the date of maximum activity. It is measured as a degree with zero degree indicating spring equinox (roughly March 21st/22nd). 90 is the Summer Solstice, 180 is the Autumn Equinox and 270 is the Winter Solstice. This degree is independent of the calender. AMS .
The coordinates can also be determined by the Right Ascension (280.3) and the Declination (55).
The speed/velocity of the Meteor Shower particles is 33 km/s.
|Max Activity Date||15 Jun|
|Activity Period||June 10-21|
|Solar Longitude / λ ☉||85.2 °|