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Why the Moon Looks Bigger and Brighter in Autumn
Why the Moon Looks Bigger and Brighter in Autumn
US · Published Oct 9, 2025
• The moon appears larger in autumn due to the 'moon illusion,' where it seems bigger near the horizon.
• The 'harvest moon,' the full moon closest to the autumn equinox, provides bright light for harvesting.
• Clearer autumn air reduces atmospheric scattering, making the moon appear brighter and more defined.
Autumn moon: larger and brighter appearance
Autumn brings a unique spectacle: the moon appears larger and brighter. This is due to the moon illusion, the harvest moon timing, and atmospheric conditions.
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