Understanding the Impact of Satellite Constellations On Astronomy

jrepin writes: In June 2019, the International Astronomical Union expressed concern about the negative impact that the planned mega-constellations of communication satellites may have on astronomical observations and on the pristine appearance of the night sky when observed from a dark region. Now IAU presents a summary of the current understanding of the impact of these satellite constellations, and considers the consequences of satellite constellations worrisome. They will have a negative impact on the progress of ground-based astronomy, radio, optical and infrared, and will require diverting human and financial resources from basic research to studying and implementing mitigating measures. The IAU notes that currently there are no internationally agreed rules or guidelines on the brightness of orbiting manmade objects.

Given the increasing relevancy of the topic, the IAU “will regularly present its findings at the meetings of the UN Committee for Peaceful Uses of Outer Space (COPUOS), bringing the attention of the world Government representatives to the threats posed by any new space initiative on astronomy and science in general.”