1) Dragonrider of Pern location 
A Weyr ɪər is a collection of dragons, their riders and support staff in Anne McCaffrey`s fictional world of Pern. The function of a Weyr is to fight Thread, a spore that originates in the Oort cloud of the Rukbat solar system, carried by a planetoid referred to as the Red Star with a loose elliptical orbit. The time during which Thread falls i....