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Darkened SpaceX Satellites Can Still Disrupt Astronomy, New Research Suggests


Darkened SpaceX Satellites Can Still Disrupt Astronomy, New Research Suggests
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Launch of SpaceX Starlink satellites on November 24, 2020. (Image: SpaceX)
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SpaceX’s attempt to reduce the reflectivity of Starlink satellites is working, but not to the degree required by astronomers.
Starlink satellites with an anti-reflective coating are half as bright as the standard version, according to research published in The Astrophysical Journal. It’s an improvement, but still not good enough, according to the team, led by astronomer Takashi Horiuchi from the National Astronomical Observatory in Japan. These “DarkSats,” as they’re called, also continue to cause problems at other wavelengths of light. ....

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'Dimmed' SpaceX Satellites - Still Undermine Astronomy?


The Astrophysical Journal.
Darkened Starlink satellites could still disrupt astronomy, says study
Starlink satellites with anti-reflective coating are already half the brightness of the standard models, according to the study. While this is an improvement, the darkened models don t lower the noise of light pollution, according to the team of scientists from the National Astronomical Observatory in Japan under the leadership of Takashi Horiuchi.
Called DarkSats, the SpaceX-launched internet satellites also continue to be a problem at other light wavelengths,
The initial pack of 60 Starlink satellites was launched in May 2019, but instantly met concerns from the astronomical community regarding the constellations propensity in low-Earth orbit (LEO) to disrupt astronomical study of the night sky. ....

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