The eta Aquariids meteor shower takes place within the boundaries constellation of the Aquarius. The Solar Longitude (Abbrev: S.L., λ ☉) is 46 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 1P/Halley. The coordinates can also be determined by the Right Ascension (338.1) and the Declination (-0.8).
The speed/velocity of the Meteor Shower particles is 66 km/s.
|Solar Longitude / λ ☉||46 °|