INFRARED + Visible: Nucleus of Comet C/2023 A3 Tsuchinshan–ATLAS
Taken by Barry Ollikkala on October 17, 2024 @
Tarpon Springs, FL
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Date Taken: 2024:10:18 09:19:28
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Finally got to a dark sky away from the Tampa city lights and haze, and last night it was very clear in Florida! I was able to get my best images of the comet to date.
Comet Tsuchinshan-ATLAS (C/2023 A3) in a very clear sky over the Gulf of Mexico, from Tarpon Springs FL on Oct 17. The comet was higher in the sky than previous nights as it moves away from the Sun, which gave me plenty of time to get a whole range of images from the entire comet with its spectacular long tail to a closeup of the nucleus with a Sigma 150-600mm f5-6.3 C lens on an iOptron SkyGuider Pro, mounted on a Meade heavy-duty field tripod.
Image 1: Closeup of the nucleus of Comet Tsuchinshan-ATLAS (C/2023 A3) in visible and infrared light over the Gulf of Mexico from Tarpon Springs, FL. The ice and snow 'melting off' the spherical nucleus can be seem, as well as the anti-tail can be seen pointing down towards the Sun. (Full-spectrum Canon M200, Sigma 150-600mm f5-6.3 lens @ 600mm, Viltrox 0.71x speed booster, f4.5, 20 8s images on a star tracker mount, stacked using DeepSkyStacker, ISO 800)
Image 2: Closeup of Comet Tsuchinshan-ATLAS (C/2023 A3) in visible and infrared light over the Gulf of Mexico from Tarpon Springs, FL. The anti-tail can be seen pointing down towards the Sun. (Full-spectrum Canon M200, Sigma 150-600mm f5-6.3 lens @ 400mm, Viltrox 0.71x speed booster, f4, 29 8s images on a star tracker mount, stacked using DeepSkyStacker, ISO 800)
Image 3: Comet Tsuchinshan-ATLAS (C/2023 A3) over the Gulf of Mexico from Tarpon Springs, FL, with its 15-degree-long tail (Canon R8, Rokinon 135mm f2 @ f2.5, 31 4s images stacked using DeepSkyStacker, ISO 125)
Image 4: Comet Tsuchinshan-ATLAS (C/2023 A3) over the Gulf of Mexico from Tarpon Springs, FL Oct 17 2024, with Howard Park beach to the right. the comet tail spans about 15 degrees, or about 30 Full Moon diameters! It was too faint to see with the naked eye. (Canon R8, RF 50mm f1.8 @ f2.2, 4s, ISO 200)
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