Solar panels reflective ability stronger astronomers is worried that America's 'star chain' plan 'pollution' the stars

Space exploration technology companies in the United States the first 60 & other; Star chain & throughout; Satellite has successfully deployed, lined up in the sky flicker of a shock. But astronomers worry, & other; Star chain & throughout; Plans may & other; Pollution & throughout; The starry sky, seriously affect the ground telescope observations of the universe.

telescopes usually need a long exposure to capture a weak signal distant galaxies, but appears bright objects can lead to observations of a blur. “ Star chain & throughout; The satellite consists of reflective material or solar panels, the reflective ability is stronger. Astronomers think that when these satellite sparkling, connect string of orbit around the earth moves, will cause extremely difficult to eliminate to the astronomical observations & other Pollution & throughout; 。

space exploration technology company plans, from 2019 to 2024, set up by about 1 in space. 20000 satellite & other; Star chain & throughout; Network, to provide high-speed Internet access services to the earth from space. Among them, 1584 will be deployed in low-earth orbit, 550000 meters above the earth.

the Netherlands radio astronomy research institute astronomer Seth & middot; According to Barcelona & other; Star chain & throughout; First deployed 1600 satellite is calculated, the results showed that 52 degrees north latitude region, about 84 satellite pledge forever, in the twilight and the whole summer night, as many as 15 more visible.

the European space agency (esa), according to the current orbit about 5000 satellite, with about 1950 is still at work. In addition to & other; Star chain & throughout; Unplanned, a network companies in the United States and amazon are put forward their own satellite Internet plan, plan to thousands of satellites into space, respectively. Astronomers think that this will greatly increase the likelihood of satellite across telescope the line of sight.

space exploration technology company CEO elon & middot; Musk initially denied the concern in the push, said the star sky, the satellite will hide in the dark. Retort that it professionals, because only the night to see the satellite. Musk said subsequently reversed, if need to adjust the direction of the satellite reduce sunlight, it's very easy to do. Musk also advised to move into space will ground-based telescopes. The stark observatory at the Massachusetts institute of technology researchers Mary & middot; Knapp said, is large diameter telescope into space because of the cost is too high and not reality, and if enough altitude, the line of sight is still at the satellite.