Explanation: Comet Lemmon is brightening and moving into morning northern skies. Besides Comet SWAN25B and Comet ATLAS, Comet C/2025 A6 (Lemmon) is now the third comet currently visible with binoculars and on long camera exposures. Comet Lemmon was discovered early this year and is still headed into the inner Solar System. The comet will round the Sun on November 8, but first it will pass its nearest to the Earth -- at about half the Earth-Sun distance -- on October 21. Although the brightnesses of comets are notoriously hard to predict, optimistic estimates have Comet Lemmon then becoming visible to the unaided eye. The comet should be best seen in predawn skies until mid-October, when it also becomes visible in evening skies. The featured image showing the comet's split and rapidly changing ion tail was taken in Texas, USA late last week.

Growing Gallery: Comet Lemmon in 2025

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: comet - komety Publikacii so slovami: comet - komety
Sm. takzhe: 3I ATLAS: hvosty mezhzvezdnoi komety Kometa Lemmon i Mlechnyi Put' 3I/ATLAS: vid s planety Zemlya Bluzhdayushii hvost komety Lemmon Dve komety na odnom snimke Komety SWAN, ATLAS i Mars Kometa C/2025 R2 SWAN Vse publikacii na tu zhe temu >>