10 Dollars - Elizabeth II Tycho Brahe

Tycho Brahe's inclusion in this series is historically pointed: the Danish astronomer built the most precise naked-eye observatory in pre-telescopic history at Uraniborg, and his meticulous stellar and planetary data — accumulated over decades on the island of Ven — became the raw material Kepler used to derive his laws of planetary motion. Brahe never accepted heliocentrism himself, proposing instead a hybrid geo-heliocentric model. Cook Islands issued dozens of similar gold miniatures in this period under licensing arrangements, with the commemorative content having no connection to the issuing territory.