“It’s a bit of an eye-opener.” ScienceMagArchives
where astronomers can view the stars without light pollution from space junk and satellites, according to a new analysis. The study considered the tens of thousands of objects in orbit as of 2020—before an onslaught of thousands more satellites that companies plan to launch in the coming years.
So far, astronomers and advocacy groups like Barentine's have focused their worries on how the bright trails of individual satellites overhead disrupt naked-eye observers and. In response, SpaceX engineers have managed to dim their subsequent satellites to about one-quarter of the brightness of the first prototypes.
That calculation relies on several assumptions, starting with estimates of the number and size distribution of space objects in the mid-1990s, extrapolating the increasing crowdedness of space since then, and guessing how reflective these objects would be on average.
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