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Catch Stunning Green Comets This October!

10/12/2025

27 5 Full Breakdown

Summary

Story summary

Green comets C/2025 A6 Lemmon and C/2025 R2 SWAN are visible in the Northern Hemisphere.
Comet Lemmon is best seen before dawn on October 12, 2025, near the Big Dipper.
Lemmon shifts to evening visibility starting October 13, 2025.
Comet SWAN is visible in the southwest after sunset near Sabik.
Observers should use binoculars as both comets brighten around October 20–21, 2025, coinciding with the Orionid meteor shower.

History

Historical Context

Halley's Comet, which orbits the Sun every 76 years, last approached Earth in 1986, captivating audiences despite its less-than-spectacular visibility. The European Space Agency's Giotto spacecraft captured detailed images of the comet's nucleus, about 15 kilometers wide. This event reignited interest in comets, linking to future sightings like comets Lemmon and SWAN in 2025, underscoring humanity's fascination with these celestial phenomena.

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Story summary

Green comets C/2025 A6 Lemmon and C/2025 R2 SWAN are visible in the Northern Hemisphere.
Comet Lemmon is best seen before dawn on October 12, 2025, near the Big Dipper.
Lemmon shifts to evening visibility starting October 13, 2025.
Comet SWAN is visible in the southwest after sunset near Sabik.
Observers should use binoculars as both comets brighten around October 20–21, 2025, coinciding with the Orionid meteor shower.

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