On October 21, comet C/2025 A6 Lemmon will pass at a minimum distance from Earth — about 89 million kilometers, according to the Solar Astronomy Laboratory of the Institute for Space Research of the Russian Academy of Sciences and the Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences. This event attracts the attention of both professional astronomers and space enthusiasts.
«Comet C/2025 A6 Lemmon will pass at a minimum distance from Earth in three days, amounting to about 89 million km,» the specialists specified. The object is moving from the constellation Canes Venatici towards Boötes, the nearest bright reference star is Arcturus.
The comet is primarily of interest to astrophotographers: on high-precision instruments, it looks like an «exceptionally beautiful» object. However, due to poor visibility, it is almost impossible to detect it with the naked eye or ordinary binoculars.
For comparison, most comets close to Earth remain faint and require special instruments. International practice shows that such flybys allow collecting important data on the composition of comets, their tails, and interaction with the solar wind.
