Moon phase tonight
Thursday, December 17, 2026
Moon phase on December 17
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First Quarter
57% illuminated · 8.1 days into the lunar cycle
Illumination
57%
QUIET
Next Full Moon
Dec 247d away
QUIET
Next New Moon
Jan 721d away
QUIET
Sky-watching conditions
With 57% of the moon lit, expect moderate moonlight — a strong aurora display should still be visible, but faint activity may be washed out. Check the aurora forecast for tonight's Kp index and visibility odds.