A total lunar eclipse or “blood moon” will be visible across the world early Tuesday morning, and there’s a chance Bay Area astronomers could see it for themselves – weather permitting.
The phenomenon occurs when the Earth aligns with the sun and casts a shadow on the moon. This causes the moon’s surface to appear a reddish, reddish-orange color as atmospheric refraction bends the red hues of sunlight, allowing them to illuminate the moon, said Elinor Gates, an astronomer at the Lick Observatory. on Mount Hamilton. SFGATE on Sunday.
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