Contains:  Solar system body or event

Image of the day 06/25/2023

    ISS transiting the eastern solar limb, Tom Williams

    ISS transiting the eastern solar limb

    Acquisition type: Lucky imaging

    Image of the day 06/25/2023

      ISS transiting the eastern solar limb, Tom Williams

      ISS transiting the eastern solar limb

      Acquisition type: Lucky imaging

      Equipment

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      Description

      ISS transiting the Sun. This is a 3-panel mosaic to deal with my uneven Ha filter. 19 frames of the ISS were stacked and superimposed using one of these frames. See animation here: https://imgur.com/a/fZWa848
      • Evostar 120 (4.5" Frac), Quark, Apollo-M Max (IMX432) at 4200mm f/35.
      • 0.70ms, 350 gain, 87fps.
      • 47° alt, with ISS at 550km range, 50" apparent size.

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      Histogram

      ISS transiting the eastern solar limb, Tom Williams