After being visible on Sunday, Oct. 12, 2025, two green comets are becoming easier to see — and more convenient. On Monday, Oct. 13, the brighter comet, Lemmon (C/2025 A6), will shift from being a morning-only target to evening visibility as well, appearing low in the northwest about 90 minutes after sunset. The dimmer comet SWAN (C/2025 R2) will appear in the southwest just beneath the bright star Sabik, making it relatively easy to try for. Both will remain binocular-only objects for now, but with a waning gibbous moon now rising late at night, both should become more prominent. They’re both expected to reach their brightest around Oct. 20-21, a date that coincides with a new moon and the Orionid meteor shower, potentially creating one of the best skywatching opportunities of the year.
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