Airglow Above Rubin AuxTel

Atomic processes in the Earth's atmosphere light up the sky above the Rubin Auxiliary Telescope in streaks of red and green, a phenomenon known as airglow. Rubin AuxTel was previously the Calypso Telescope at Kitt Peak National Observatory (KPNO). In 2014 it was moved to its current site in Cerro Pachón after it was donated to the Rubin Observatory by its proprietor Edgar Smith. It will provide important complementary data for the Rubin Observatory throughout survey operations.