The September Gamma Sagittariids meteor shower takes place within the boundaries constellation of Sagittarius. The Solar Longitude (Abbrev: S.L., λ ☉) is 170.1 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 believed to be Asteroid 107P/Wilson-Harrington. The closest star to the radiant point of the meteor shower is Alnasl. The coordinates can also be determined by the Right Ascension (270.8) and the Declination (-31).
The speed/velocity of the Meteor Shower particles is 6 km/s.
|Closest Star to Radiant Point||Alnasl|
|Peak Activity Date||13th September|
|Solar Longitude / λ ☉||170.1 °|
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