umbra

In London, the eclipse will begin at 03:33 BST and deepen until maximum eclipse at 05:12 BST, when around 90% of the Moon will be immersed in Earth's umbra, the darkest part of its shadow.

From BBC ● Jun. 6, 2026

In this case, about 3.5% of the moon will appear darkened by the Earth’s umbra, a term that describes the darkest segment of the Earth’s shadow.

From Los Angeles Times ● Sep. 17, 2024

Directly behind the Earth is its main shadow—very dark and narrow, and called the umbra.

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

The Justices of that day bore a heavier burden than their successors--hodie nominis umbrae.

From Ovington's Bank by Weyman, Stanley J.

But the ancient habitues—the magni nominis umbrae, contemporaries of Brummell in his zenith, boon companions of George IV. in his regency—still haunted the spot.

From My Novel — Complete by Lytton, Edward Bulwer Lytton, Baron

Virgil thought the odour exhaled by the Juniper tree noxious, and he speaks of the Juniperis gravis umbra:—     "Surgamus! solet esse gravis cantantibus umbra;     Juniperis gravis umbra; nocent et frugibus umbrae."

From Herbal Simples Approved for Modern Uses of Cure by Fernie, William Thomas

Plato truly believ'd his archetypal Idēas to possess the fourth dimension: For since our solid is triple, but always Its shade only double, solids as umbrae Must lack equally one dimension also.

From The Poetical Works of Robert Bridges by Bridges, Robert

Happily these umbrae pallentes have now vanished, and I trust we will make the ties of friendship closer and stronger by establishing between us a community and exchange of prayers.

From Memoirs of James Robert Hope-Scott, Volume 2 by Ornsby, Robert

Occasionally, the penumbras of two sunspots of opposite polarity merge as they move past each other, putting the oppositely charged umbras in contact.

From Time Magazine Archive

The darker central portions of sunspots, or umbras, have the strongest magnetic fields; the lighter exteriors, or penumbras, the weaker fields.

From Time Magazine Archive

"Because the umbras have opposite polarities, they attract each other," says the Marshall Center's Moore.

From Time Magazine Archive

So Brother Copas had told her, to himself repeating— "Cras amorum copulatrix inter umbras arborum Inplicat casas virentes de flagello myrteo...."

From Brother Copas by Quiller-Couch, Arthur Thomas, Sir

As here represented, there are formed complete shadows, called umbras; and partial shadows, called penumbras.

From Harper's New Monthly Magazine, Vol. 3, July, 1851 by Various