comets

c/2025 a6

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C/2025 A6 was only discovered on 03.01.2025, and from around the beginning of August developed into an object of much greater brightness than originally assumed.This image was taken on 11.10.2025, at around 3:45 UTC from 256 exposures of 3.2 seconds each at f/1.4, which were then integrated. The length of the tail in this image … Read more

c/2022 e3

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Comet C/2022 E3 is the greenish diffuse streak to the right of (a), taken on 10.02.2023 at 20:01 UTC in the constellation Taurus. It was of rather modest appearance.(b) = Mars. Next to (c) is COSPAR 2010-043D = NORAD 37155, a Russian Briz-KM rocket upper stage that was launched from Plesetsk on 08.09.2010 and deployed … Read more

c/2023 a3

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C/2023 A3 passed through its perihelion on 27.09.2024, after which its absolute brightness steadily decreased. It reached its smallest distance to Earth on 12.10.2024 and I was able to see it effortlessly as a bright object on the western horizon for the first time on the evening of 13.10.2024. However, I didn’t have a camera … Read more