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How to use penumbra in a sentence

Looking for sentences and phrases with the word penumbra? Here are some examples.

Sentence Examples
I've been in a black mood since September 2001, it's hanging over me like a penumbra.
But the penumbra is so faint that it cannot be recognized until just before the Moon enters the Earth's dark central shadow, the umbra.
Long, thin filaments radiate from the umbra into a brighter surrounding region called the penumbra.
How much the moon is dimmed depends on whether it passed through the penumbra or the darkest part of the shadow, the umbra.
Our planet's shadow has two parts, a dark inner core called the umbra and a pale outer fringe called the penumbra.
Outlined against the setting sun, the silhouette took on a strangely surreal beauty, as if a shadow's penumbra and umbra were fused together.
He stands within the penumbra of the falls, near the top of Irish Mountain.
The black penumbra which appears when you first look to its edges soon becomes brown.
The penumbra of his face, and the emanations of light leaking from behind his ears, and his hair, was blinding.
And we would do well to remember that the penumbra is the lighter, outer region of the shadow, the halo, indeed, of the shadow.
In other cases the Moon does not pass through the umbra at all, just going through the penumbra.
A penumbra of fiery purple encircles this near-seamless construction of photographs, objects and painted images on wood.
As the partial phase progresses, you are moving deeper and deeper into the Moon's penumbra.
Others tell different jokes that are incoherent except in the penumbra cast by the joke.
Like many words in everyday use, it carries with it, as it were, a penumbra of different shades of meaning.
More headway was made among the Slavs of central Europe, aided by the relative ease of access and the penumbra of Carolingian power.
When viewed through a telescope, sunspots have a dark central region known as the umbra, surrounded by a somewhat lighter region called the penumbra.
I will never forget its purple penumbra of sunset, its gigantic icebergs which you can walk to and chip bits off to make your tea.
Hart calls this the penumbra of uncertainty that marks the outer bounds of legal rules.
There is a very clear demarcation between the umbra and penumbra, and also between the penumbra and the atmosphere.
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Examples from Classical Literature
Outside the umbral cone is that of the penumbra, within which the sun is partially hidden by the moon.
The answer is not yet made, the oracle has not spoken, and we must not invade the penumbra of genius.
The idea of change is there, I am willing to grant, but it is hidden in the penumbra.
The penumbra will last quite a long time yet, but it will gradually get fainter and fainter.
Two tears, phosphorescent in the penumbra, rolled from the eyes of the painter.
Now I will try and explain to you what the penumbra is and how it is produced.
They are generally surrounded by an aureola known as the penumbra, and sensibly less luminous than the other portions of the orb.
And Porter was still working away, looking ghostly in the penumbra.
Each spot is quite sharply divided into an umbra and a penumbra.
Thus they were in a little island of pink light surrounded by penumbra.
Slowly the penumbra, the shadow of a shadow, crept on over the bright surface, and as it crept I heard deep gasps of fear rising from the multitude around.
Julie, from Stonehaven in Kincardineshire, was a support manager with charity Penumbra at their Aberdeen branch.
The Apollo system is the result of decades of research and development work in the field of advanced aspiration and vibrational energy technology by researchers at Penumbra.
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