„Lem” & „Heweliusz” telescopes of BRITE constellation

BRITE (Brite Target Explorer) Project is an international collaboration aimed at collecting astronomical data on the brightness oscillation of stars which are bigger and hotter than the Sun. Institutes from Austria, Canada and Poland contributed star-observing nanosatellites, forming a constellation of 6 spacecraft constantly conducting photometric measurements of stars. CBK PAN built and qualified two spacecraft for flight: Lem and Heweliusz. Lem was launched from Russia on November 21, 2013, Heweliusz was launched from China on August 19, 2014.