27/09/2023
A Sun Question. Congrats to for winning the Sun category of the Astronomy Photographer of the Year! . Taken in Rafaela, Santa Fe, Argentina, 1 October 2022
"The Sun continues to exhibit mysterious behaviour and often its dynamics can be unpredictable," explains winning photographer Eduardo. "On the morning of 1 October, it wanted to show us in a very graphic way that it is a star with many unanswered questions, demonstrated clearly by this huge and beautiful filament in the shape of a question mark.
"This photo is a mosaic of two panels. For each one I captured a video of 1,700 frames and stacked 115 of them with AutoStakkert! and applied wavelets with Registax. The final contrast and colour adjustments were made with Photoshop. This photograph was taken with a planetary camera of only 1.7 megapixels."
Equipment used: Sky-Watcher Evostar 150ED DX Doublet APO refractor telescope at 840 mm focal length 120 mm aperture , Daystar Quark Chromosphere filter, Baader ERF frontal filter, iOptron CEM70G mount, Player One Apollo-M Max camera, Gain 100, 2 panels of 115 x 3.47-millisecond exposures https://www.rmg.co.uk/whats-on/astronomy-photographer-year/galleries/our-sun-2023