Mini-Throughput: The Universe Comes Into Focus Via James Webb Space Telescope

Michael Siegel

Michael Siegel is an astronomer living in Pennsylvania. He blogs at his own site, and has written a novel.

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3 Responses

  1. Michael Cain
    Ignored
    says:

    The diffraction spikes are just because the center star is grossly overexposed, right? Not going to be a problem with properly exposed images? I admit to wondering about spikes every time I saw a picture of the Webb and those three relatively huge struts holding the secondary.Report

  2. Kolohe
    Ignored
    says:

    Huh, today I learned. I always thought the initial Hubble aberration was from the mirrors etc sitting around in 1g for longer than anyone expected due the mission delays that followed the Challenger disaster.

    https://www.nasa.gov/content/hubbles-mirror-flawReport

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