sentences:  The association was terminated in 1983.In 1986 the observatory building was passed to Turun Ursa, also founded by Yrjö Väisälä.The land of the observatory was rented from a local farmer until 2002, when Turun Ursa received a grant from "Viljo, Yrjö ja Kalle Väisälän rahasto" (Viljo, Yrjö and Kalle Väisälä Fund) to purchase the land.