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    Re: Comet Donati above Paris 1858
    From: Robin Stuart
    Date: 2019 Apr 21, 07:28 -0700

    Alex you wrote:

    "Even in our time is is not possible to make such a photograph. Night sky needs a long exposition."

    Actually modern off-the-shelf cameras have some pretty impressive capabilities. Here's a picture I took of the Magellanic clouds nearly 2 years ago with a Canon DSLR camera that was several years old at the time. It is a 15 second exposure unguided exposure at ISO 5000 which is not the maximum ISO possible. This was just a test of the capabilities and I'm not particularly proud of it. The focus is obviously rather poor. However I think the limiting magnitude probably exceeds that shown in the "Photoshop"-ed version of Comet Donati.

    Robin Stuart

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