Meaning Of The Word Astronomical twilight
What's the definition of Astronomical twilight? Find Astronomical twilight meanings, definitions and more at the Real Dictionary online.
Astronomical twilight Meaning
| Astronomical twilight Definition |
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What's The Definition Of Astronomical twilight?
astronomical twilight in American English
noun: either of two periods of partial darkness, after sunset or before sunrise, when the center of the sun is more than 6° but less than 18° below the horizon astronomical twilight in British English noun: the period of time during which the sun is 18° below the horizon |
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