公民科学家报告称，2011年至2022年期间，全球范围内恒星的可见度迅速下降。
Citizen scientists report global rapid reductions in the visibility of stars from 2011 to 2022.
作者信息
Kyba Christopher C M, Altıntaş Yiğit Öner, Walker Constance E, Newhouse Mark
机构信息
Remote Sensing and Geoinformatics, Deutsches GeoForschungsZentrum Potsdam, 14473 Potsdam, Germany.
Geographisches Institut, Ruhr-Universität Bochum, 44780 Bochum, Germany.
出版信息
Science. 2023 Jan 20;379(6629):265-268. doi: 10.1126/science.abq7781. Epub 2023 Jan 19.
The artificial glow of the night sky is a form of light pollution; its global change over time is not well known. Developments in lighting technology complicate any measurement because of changes in lighting practice and emission spectra. We investigated the change in global sky brightness from 2011 to 2022 using 51,351 citizen scientist observations of naked-eye stellar visibility. The number of visible stars decreased by an amount that can be explained by an increase in sky brightness of 7 to 10% per year in the human visible band. This increase is faster than emissions changes indicated by satellite observations. We ascribe this difference to spectral changes in light emission and to the average angle of light emissions.
夜空的人工辉光是光污染的一种形式；其随时间的全球变化情况尚不为人所知。由于照明实践和发射光谱的变化，照明技术的发展使任何测量都变得复杂。我们利用51351次公民科学家对肉眼可见恒星能见度的观测，研究了2011年至2022年全球天空亮度的变化。可见恒星的数量减少了，减少的数量可以用人类可见波段天空亮度每年增加7%至10%来解释。这种增加速度比卫星观测显示的排放变化要快。我们将这种差异归因于光发射的光谱变化以及光发射的平均角度。
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