astronomical twilight

as·tro·nom·i·cal twi·light

A a

- US Pronunciation
- US IPA
- [as-truh-nom-i-kuh l or as-truh-nom-ik twahy-lahyt]
- /ˌæs trəˈnɒm ɪ kəl or ˌæs trəˈnɒm ɪk ˈtwaɪˌlaɪt/

- US Pronunciation
- US IPA
- [as-truh-nom-i-kuh l or as-truh-nom-ik twahy-lahyt]
- /ˌæs trəˈnɒm ɪ kəl or ˌæs trəˈnɒm ɪk ˈtwaɪˌlaɪt/

Definitions of astronomical twilight words

noun astronomical twilight the period of time during which the sun is 18° below the horizon 3
noun astronomical twilight 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. 1
noun astronomical twilight The period in which the sun is between 12° - 18° below the horizon in the morning and evening. 0

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 7% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

This diagram is provided by Google Ngram Viewer

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