C/2024 G3 ATLAS in daylight
Taken by Alessandro Carrozzi on January 12, 2025 @
Casalgrande, Emilia-Romagna, Italy
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Camera Used: Canon Canon EOS 6D
Exposure Time: 1/1600
Aperture: Unavailable
ISO: 100
Date Taken: 2025:01:12 18:15:34
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Details:
The comet C/2024 G3 ATLAS photographed in broad daylight on January 12, 2025, at 1:30 PM Italian time (12:30 UTC).
The comet C/2024 G3 ATLAS, belonging to the sungrazer category (comets that graze the Sun), will reach its perihelion on January 13, 2025, passing just 3,916,597 km from the Sun—less than one-tenth the distance between Earth and our star. This close approach has made it extremely bright, with a magnitude similar to that of the planet Venus. However, it is also immersed in the intense glare of sunlight, making it difficult to observe.
The photograph, made possible thanks to a clear day and excellent atmospheric transparency, is the result of a complex daytime imaging technique. To capture the image, the Sun was carefully obscured behind a building, and 165 frames of 1/1000 second each were taken, later averaged through digital processing.
Important note: The comet was not visible to the naked eye nor in individual frames. It was revealed through extreme processing of the stacked images. This type of capture can also be dangerous and should only be attempted by experienced observers. It is essential to protect both the camera sensor and the observer's eyesight with appropriate solar filters during the set up phase.
Photographer's website:
https://www.flickr.com/photos/151655471@N07/
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