Neowise X Starlink— José Garza (@stuntech) July 24, 2020
A striking photograph of Comet Neowise, which shows how easily satellites can observe distant objects in space, behind those light streaks.
The Starlink Satellite Project is Musk 's plan for the High-Speed Internet Satellite to unlock Earth. But the efforts have been criticised by professional and amateur astronomers, as the shining satellites can disturb the sky and the telescope observations.
So the astro photographer Daniel López had done on the 21st July when he shot Comet Neowise for another 6,800 years before it was lost of sight. It was a disgrace to see the satellites doing such a spectacle on the Facebook page of his photographers El Cielo de Canarias.
The photograph of López consists of 17 pictures taken in 30 seconds. Each picture was exposed for several seconds, which meant that the comet captured it. The photo was shared on Twitter by Astronomer Julien Girard, saying that the satellites "completely shot the comet." "A Starlink also bombed two of my pictures the next night," said Girard.
The time video behind the picture was also shared by López. He added that 20 of his images showed traces of satellites.
The image does not show what you would see with the naked eye, because it's a composite time-lapse picture. However, it explains why many astronomers are concerned about the threat to earth-based astronomy posed by satellite constellations like Starlink.
Long exposure images are a key part of the night sky study of distant objects. Telescopes on Earth look for hours at celestial targets, and gradually create a detailed image with extensive data for astronomers.
But a Starlink satellite, which was poorly timed, could ruin such research by creating a long strip across the picture and blocking items that astronomers want to study.
"A full 10 to 15 minutes' exposure is ruined in that couple of seconds,' Business Insider told astronomer Jonathan McDowell in June.
SpaceX shares the orbital trajectory of Starlink with astronomers to plan their telescope observations around the movements of the satellites. If the camera is shut down briefly when the site goes overhead, a long exposure image may be saved.
But Musk 's ambitions could make avoiding fast-moving satellites almost impossible. SpaceX has sought the permission of the government to put a total of 42,000 satellites around the Earth to form a "mega constellation."
"If they're always coming, then it's not helpful to know when they come over," McDowell said. He also added that the photobombers sometimes can not be avoided by astronomers.
SpaceX is not a massive fleet of satellites built by the only company. Similar ambitions apply to companies such as OneWeb and Amazon.
"Thousands of points appear and will disappear in the night sky" López told Gizmodo. "The sky will not be what it's been for millions of years now. "I personally believe it will be the end of astronomy if no action is taken, as we know it from Earth's surface."
"For everyone, there is the night sky. It is scrutinised and used for thousands of years," said Girard. "Like our Earth, we ought to guard and cherish it."