Comet C/2025 A6 Lemmon: View from Austria
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, 2025, 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.
Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. Austria is bordered by Germany to the northwest, the Czech Republic to the north, Slovakia to the northeast, Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the west.
Details: under best mountain conditions after Moonrise, 1.45 UT LRGB 450/90/90/90sec 16"/3.2 QHY 600 2x2 bin Michael Jäger, Gerald Rhemann G00
Capture Location: Astronomical Centre Martinsberg (AZM), Austria
Release Date: Oct. 4, 2025
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