umbra

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When the moon is within the umbra, the darkest part of Earth’s shadow, it looks red-orange, giving the eclipse the name “blood moon.”

From Los Angeles Times • Mar. 11, 2025

But do not expect there to be a big shadow visible on the supermoon as only around 4% of the Moon's disc will be covered in darkness by the umbra shadow.

From BBC • Sep. 17, 2024

When the moon passes partially into the umbra, it creates a partial eclipse, which looks as if there’s been a bite taken out of the moon.

From Slate • Apr. 5, 2024

A solar eclipse occurs when a new moon aligns perfectly between Earth and the sun and briefly casts a shadow on our planet, called an umbra.

From National Geographic • Oct. 2, 2023

All were in the umbra of the magnificent hemlock.

From "Frightful's Mountain" by Jean Craighead George