Comet Tsuchinshan-ATLAS and the Sun
Taken by Petr Horálek on October 8, 2024 @
Lokca, Slovakia
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Details:
OK, I went totally manually and math-processing old school today on 8th October from Lokca, Slovakia. Using a circular handmade Baader Astrossolar filter I blocked the Sun and moved to the completely left edge of the 200mm field of view. Then I took 62 extremely fast subsequent exposures 1/6400, f2.8, ISO 100 (tracked on Sun) which I stacked by median/mean to avoid any other object flying in the view (especially spider threads flying through the air, which is typical of this central European season) and reduce the digital noise. Darkframes were taken and applied too. As a side effect of using the filter, you can see the big sunspots too. Note, the comet was invisible to the naked eye and too faint in one frame. It is extremely enhanced from the stacked data and the core is 50 percent sharpened. On the second note - we had incredibly clear air today in Slovakia with a minimum of dust and humidity. Only fast-moving clouds were in the sky (I cannot determine whether the tail is truly a tail or only part of the cirrus cloud). I believe this is crucial for such result too. Anyway, give it a try, good luck and be careful!
Photographer's website:
https://www.petrhoralek.com/?p=24114
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