Structure in the Tail of Comet 12P/Pons-Brooks
Image Credit & Copyright: Dan Bartlett

Explanation: Heading for its next perihelion passage on April 21, Comet 12P/Pons-Brooks is growing brighter. The greenish coma of this periodic Halley-type comet has become relatively easy to… pic.twitter.com/xuShwkIKHA

— Astronomy Picture Of the Day (@apod) February 17, 2024