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Joined 3 个月前
Cake day: 2024年6月22日
  • Successful_Try543@feddit.orgtoAstronomy@mander.xyz•Starlink is increasingly interfering with astronomy, scientists say
    3·
    5 小时前

    Considering their instance, I’d assume they’re more out of their mind than huffing Elmo.

    Another important part in this argumentation is that each type of telescope has its use case:
    Extraterrestrial telescopes, as they are not objected by atmospheric blur can obtain much better ‘images’ from the cosmos even of weak, low brightness signals, which makes them best for observing the ‘far’ cosmos until the boundaries of recognition.
    Yet, they are and always will be much more expensive and more difficult to maintain than terrestrial telescopes. Thus, using them for observing our cosmic front yard, the milky way, is like shooting with canons at sparrows.
    Due to their cost, extraterrestrial telescopes also will always be ‘few’, too few to effectively keep track of the objects around us. Thus, ‘cheap’ terrestrial telescopes, large professional ones and small ones run by amateurs, will always be needed to observe the objects ‘closely’ around us, i.e. in our galaxis.

  • Successful_Try543@feddit.orgtoAstronomy@mander.xyz•Starlink is increasingly interfering with astronomy, scientists say
    9·
    5 小时前

    Don’t forget important discoveries are also made by or with the help of amateurs, who permanently observe the night sky and measure the coordinates, i.e. the relative positions, of luminating objects. This allows others, mostly professionals, to calculate their motions and obtain information about the (hidden) masses, i.e. luminating and non luminating objects, inducing and influencing them. By this means, black holes, ‘dark’ masses, or asteroids, ‘fast’ moving illuminated objects, have been and are beeing discovered.

  • Successful_Try543@feddit.orgtoAstronomy@mander.xyz•Starlink is increasingly interfering with astronomy, scientists say
    9·
    7 小时前

    The number of satellites in orbit around Earth is rapidly increasing, with some 100,000 expected to be in place by 2030. And as their numbers grow, so does the difficulty of observing the universe from Earth.

    Starlink’s satellites are bright enough that astronomers have decried them as an existential threat for as long as SpaceX has been launching them into orbit. While the company has taken some measures to mitigate how shiny they appear from Earth, their increased number and the many other satellites being launched means that their light pollution is “threatening the entirety of ground-based astronomy in every wavelength and in different ways,” astronomers told the BBC. There is a fear that soon, space observation might begin to look like a “windshield of bugs,” and become unfeasible, a researcher at the Vera C. Rubin Observatory in Chile told The New York Times.

    So basically, at least during the rest of this decade, our billion dollar telescopes, radio and optical, are blind on different frequencies or are only able to obtain diffuse resolution.