The Solar Longitude (Abbrev: S.L., λ ☉) is 39.5 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 source of the meteor shower is 2011 HP4. The closest star to the radiant point of the meteor shower is Caphir. The coordinates can also be determined by the Right Ascension (196.9) and the Declination (-1).
The speed/velocity of the Meteor Shower particles is 15 km/s.
|Associated Asteroid||2011 HP4|
|Closest Star to Radiant Point||Caphir|
|Max Activity Date||30 Mar|
|Activity Period||March 10-April 21|
|Solar Longitude / λ ☉||39.5 °|