twilight

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Related to Astronomical twilight: astronomical year
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Synonyms for twilight

half-light

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decline

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evening

Synonyms for twilight

the period between afternoon and nighttime

Synonyms for twilight

the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth

a condition of decline following successes

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lighted by or as if by twilight

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References in periodicals archive ?
Venus rises in the east-northeast right around the start of astronomical twilight throughout July.
Astronomical Twilight is from the end of nautical twilight until the Sun no longer has any effect on a clear night sky, and is usually when the Sun is 18[degrees] below the horizon, or 72 minutes after sunset.
Astronomical twilight does not end until nearly 11pm - meaning the sky doesn't get truly dark until that time.
twilight Astronomical twilight is the period from sunset to the time that the Sun is 18[degrees] below the horizon; or the corresponding period before sunrise.
Astronomical Twilight is the name for when the Sun is between 12 and 18 degrees below the horizon - meaning the skies can be observed but the sky background is not dark.
Nautical twilight ends when the Sun is 12[degrees] down; astronomical twilight ends when the Sun is 18[degrees] down.
1) sets an hour or two after sunset and can be seen just after astronomical twilight for the first week.
By the end of astronomical twilight, temperatures were between 20[degrees] and 30[degrees] Fahrenheit (-7 [degrees] and -1[degrees] C), and at the higher camps, the temperatures dropped into the lower teens by morning.
In mid-May the comet is still only about 10th magnitude, cutting the southeastern corner of the Great Square of Pegasus and rising about an hour before the start of astronomical twilight for mid-northern observers.
The planet sets more than 1 1/2 hours after the Sun during the first half of April, lingering above the horizon just after the end of astronomical twilight (at 40[degrees] north latitude) for the only time this year.
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