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A @Nature paper published today argues that "Satellite megaconstellations will threaten space-based astronomy" nature.com/articles/s41586-025…
Here's the punchline of the paper: satellites could be a problem even for orbiting space telescopes, but the impact depends on how many are launched. "Our results show that if these constellations are completed, one-third of the images of the Hubble Space Telescope will be contaminated, while the SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer), ARRAKIHS (Analysis of Resolved Remnants of Accreted galaxies as a Key Instrument for Halo Surveys) and Xuntian space telescopes will have more than 96% of +0.3 their exposures affected, with 5.6^+0.3_−0.3, 69^+21_−22, and 92^+11_−10 trails per exposure, respectively, with an average surface brightness of μ = 19 ± 2 mag arcsec−2."
#Astronomy #Satellites #Megaconstellations #SpaceTelescope
Satellite megaconstellations will threaten space-based astronomy - Nature
Rapidly growing satellite constellations pose a substantial threat to astronomical observations, with projections indicating that future space telescopes will have more than 96% of their exposures affected by satellite trails, necessitating urgent mi…Nature
Hackaday: Building A Low-Cost Satellite Tracker. “Looking up at the sky just after sunset or just before sunrise will reveal a fairly staggering amount of satellites orbiting overhead, from tiny cubesats to the International Space Station. Of course these satellites are always around, and even though you’ll need specific conditions to view them with the naked eye, with the right radio antenna […]
