другие переводы
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umbra
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примеры использования
When viewed through a telescope, sunspots have a dark central region known as the umbra , surrounded by a somewhat lighter region called the penumbra.
The total eclipse begins when the Moon is fully inside the umbra .
Outlined against the setting sun, the silhouette took on a strangely surreal beauty, as if a shadow's penumbra and umbra were fused together.
The total eclipse begins when the Moon is fully inside the umbra , but it won't be completely blacked out.
Each sunspot consists of a dark central umbra , which is estimated to have a temperature in the region of 4000°C, and a surrounding penumbra, at a temperature in the region 5000°C.
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