The Alpha Hydrids meteor shower takes place within the boundaries constellation of the Hydrus. The meteor showers occurs between 15-30 Jan with the peak occuring on the 20/21 Jan every year.
The Solar Longitude (Abbrev: S.L., λ ☉) is 284 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 closest star to the radiant point of the meteor shower is Head of Hydrus. The coordinates can also be determined by the Right Ascension (126.9) and the Declination (-8.7).
The speed/velocity of the Meteor Shower particles is 43 km/s.
|Closest Star to Radiant Point||Head of Hydrus|
|Max Activity Date||20 Jan|
|Activity Period||15-30 Jan|
|Solar Longitude / λ ☉||284 °|