Amazing Sky by Alan Dyer

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Arcturus in Twilight (130mm 6DII).jpg

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Arcturus in summer twilight, in early July 2018, shot with the 130mm Astro-Physics refractor at f/6 and Canon 6D MkII. A stack of 3 x 4-minute exposures at ISO 800.

Diffraction spikes added with Astronomy Tools actions.
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© 2018 Alan Dyer
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Arcturus in summer twilight, in early July 2018, shot with the 130mm Astro-Physics refractor at f/6 and Canon 6D MkII. A stack of 3 x 4-minute exposures at ISO 800. <br /> <br /> Diffraction spikes added with Astronomy Tools actions.