The Tau Aquariids meteor shower takes place within the boundaries constellation of the Aquarius. The meteor showers occurs between 27 Jun- 6 Jul with the peak occuring on the 28-Jun every year The Solar Longitude, mistakenly known as Lambda Omicron is 97.3 degrees. This value sometimes expressed as S.L. or λ ☉ 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 closest star to the radiant point of the meteor shower is Tau1 Aquarii. The coordinates can also be determined by the Right Ascension (340.3) and the Declination (-11.5).
The Zenith Hourly Rate or how many you expect to see during the hour is 7. The ZHR can radically increase if the comet or associated object is close by. The speed/velocity of the Meteor Shower particles is 64 km/s.
|Closest Star to Radiant Point||Tau1 Aquarii|
|Max Activity Date||28 Jun|
|Activity Period||27 Jun- 6 Jul|
|Solar Longitude / λ ☉||97.3 °|
|Zenith Hourly Rate||7|