Comet C/2023 A3 Tsuchinshan-Atlas Shining in All Its Glory

Finally I got time to process my close-up image taken from Dark Sky® Alqueva with 300mm prime lens f2.8, on 13th October, when C/2023 A3 Tsuchinshan-Atlas was revealing an impressive level of brightness and details, as well as a cool anti-tail frontal spike. It seems that the ion tail is also visible and a prominent dust tail. I processed this one with my deepsky techniques to recover as much as possible the original color and details hidden in the dust tail, washed out, easily, due to the bluish background scattered light from Moon and Twilight. 75 short exposures of 10 seconds at ISO1600, comprising around 12 minutes of images.


PT: Finalmente tive tempo para processar o meu close-up captado a partir dos céus do nosso Dark Sky® Alqueva com uma objectiva prime de 300mm f2.8, no dia 13 de outubro, quando C/2023 A3 Tsuchinshan-Atlas revelava um nível impressionante de brilho e detalhe, além de um “espigão frontal” denominado de anti-cauda. Parece que a cauda de iões também se tornou visível aliada a uma cauda de poeira bastante proeminente. Processei esta imagem com as minhas técnicas de deepsky para recuperar o mais possível a cor original e os detalhes escondidos na cauda de poeira, facilmente ocultada, devido ao fundo azulado causado pela dispersão da luz da Lua e do crepúsculo. 75 exposições curtas de 10 segundos a ISO1600, compreendendo cerca de 12 minutos de imagens.

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