The “different” Comet ATLAS has fragmented, reworking right into a cloud of particles that is streaming into house, new observations have revealed.
The comet, referred to as C/2025 K1 (ATLAS), was found in Might by astronomers on the Asteroid Terrestrial-impact Final Alert System (ATLAS) and handed perihelion, or closest level to the solar, on Oct. 8. It has no relation to the well-known interstellar comet 3I/ATLAS, apart from having been found by the identical telescope community across the identical time.
Nevertheless, new observations taken by astronomer Gianluca Masi in Manciano, Italy, present that the gravitational pressure of its voyage across the solar was an excessive amount of for the comet, inflicting it to fragment into a number of items, or clouds.
“A number of components (sub-nuclei or clouds of particles) are seen, additionally a plume slightly below the main (the primary from the left) fragment,” Masi, an astronomer on the Astronomical Observatory of Campo Catino and the founding father of The Digital Telescope Mission, wrote in an replace.
C/2025 K1’s disintegration was portended by a sudden brightening occasion round perihelion, which noticed the comet remodel from the greenish hue seen in lots of comets that fly near our solar (brought on by the presence of diatomic carbon fluorescing in daylight) right into a streaking ribbon of gold.
The reason for this transformation is unclear; some scientists speculate that the change in coloration had one thing to do with a relative lack of carbon-bearing molecules within the comet’s coma (the cloud of ice, gasoline and mud across the comet’s physique).
If you wish to see the exploded comet for your self, look within the constellation Leo, the place it is shining at magnitude 9.9, in keeping with The Sky Dwell. (In astronomy, a decrease magnitude corresponds to a brighter object; Regulus, the brightest star in Leo, has an obvious magnitude of about 1.35, for instance.) Though the comet remains to be too dim to be seen with the bare eye, it may be noticed with a good telescope or a pair of stargazing binoculars.
No matter survives of the comet is about to cross closest to Earth on Nov. 25. It can come inside about 37 million miles (60 million km), or simply underneath half the common distance between Earth and the solar.
