Astronomy & Space

Mysterious 21-hour dip reveals clue to Tabby’s star dimming puzzle

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Researchers have published a new study in the Monthly Notices of the Royal Astronomical Society examining KIC 8462852, known as Tabby's star, which has exhibited unusual irregular dimming patterns since 2016. The study investigates a 21-hour dip in the star's brightness that may provide clues to understanding the decade-long mystery of its anomalous dimming behavior. The star, classified as an F-type star, has attracted significant scientific attention due to its unpredictable light variations that differ from typical stellar behavior.


Understanding the cause of Tabby's star's irregular dimming could help astronomers better identify and explain unusual stellar phenomena and improve methods for distinguishing between natural astrophysical events and other potential causes of light variation in distant stars.


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Since 2016, an ordinary-looking F-type star called KIC 8462852, nicknamed Tabby’s star, has behaved anything but ordinarily. In a new study published in the Monthly Notices of the Royal Astronomical Society on July 6, researchers revisited this star to find out what is really causing its irregular dimming.

Source: A 21-hour dip could help explain Tabby's star's decade-long dimming mystery