Presentation of the Geminid observing campaign

The aim of the Geminid campaign was to gather observations of lunar impact flashes around the time of the maximum of the Geminid meteoroid stream, from 12 to 14 Dec 2025. This helped to train amateur astronomers in the skills of observing Lunar Impact Flashes and prepared them for a citizen science programme to support the ESA LUMIO CubeSat mission, due to launch in 2028. LUMIO will observe LIFs against the lunar far-side, whilst orbiting around the so-called Lagrange point, L2, of the Earth-Moon system. Earth-based telescopic observations are needed during the LUMIO mission to help compare and calibrate near and far-side impact flash rates. But it is important that we start forming observing teams now to be ready for the mission in 2 years time.

We asked for as much video and image coverage of the night or earthshine portion of the Moon as possible from around the world, to demonstrate the useful capabilities of amateur astronomers to contribute to scientific studies.

Here you can find the presentations given on November 10, 2025 and the recording of the event (click on the attached documents).