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ESA/NASA's SOHO captured images of a bright comet C/2023 A3 Tsuchinshan-Atlas.

 

On October 10, 2024, the tail of comet C/2023 A3 Tsuchinshan-ATLAS stretched dramatically across the view of the Solar and Heliospheric Observatory (SOHO). This stunning sight marked a significant moment for astronomers and skywatchers alike, as the comet dazzled observers with its brightness and intricate details.


The European Space Agency (ESA) and NASA’s Solar and Heliospheric Observatory (SOHO) have captured remarkable images of C/2023 A3 Tsuchinshan-ATLAS, the second-brightest comet observed by the spacecraft in its nearly 29-year mission. This comet has been a highlight for skywatchers, showcasing a long, dusty tail in pre-dawn skies throughout late September and early October.


Between October 7 and 11, C/2023 A3 Tsuchinshan-ATLAS traversed the field of view of SOHO’s LASCO (Large Angle and Spectrometric Coronagraph Experiment) instrument. This device uses a disk to obscure the Sun's brightness, allowing detailed observations of nearby objects. An image taken on October 10, 2024, displays the comet’s tail streaming from the upper left to the right, with Mercury visible as a bright dot nearby.


Following its passage through SOHO’s field of view, the comet is set to become an evening spectacle, beginning October 12. Each day throughout the month, it will rise higher in the western sky as it moves away from the Sun, although it will gradually fade in brightness. While some observers may catch a glimpse with the naked eye, binoculars or telescopes will likely be necessary as it dims.


For those unable to view the comet, there’s an opportunity to assist SOHO in discovering new comets. More than 5,000 comets have been identified through SOHO imagery, and anyone interested can participate in the Sungrazer Project to help find additional celestial wonders.

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