first light
The beginning of morning nautical twilight; i.e., when the center of the morning sun is 12 degrees below the horizon.

Military dictionary. 2000.

Look at other dictionaries:

  • First Light — is the name of several items.Two albums carry the name: * First Light (Wishbone Ash album), a previously unreleased album by rock group Wishbone Ash * First Light (album), an unrelated album by folk artist Richard ThompsonIt can also be used to… …   Wikipedia

  • first light — n [U] the time at the beginning of day when light first appears = ↑dawn, daybreak ↑daybreak …   Dictionary of contemporary English

  • first light — n. early morning, when light starts to appear; dawn; daybreak …   English World dictionary

  • first light — noun uncount the time in the morning when the sun is rising: DAWN …   Usage of the words and phrases in modern English

  • first light — noun the first light of day we got up before dawn they talked until morning • Syn: ↑dawn, ↑dawning, ↑morning, ↑aurora, ↑daybreak, ↑break of day, ↑ …   Useful english dictionary

  • First light — Als erstes Licht (engl. first light) wird in der Astronomie der Augenblick bezeichnet, in dem das Licht eines Gestirns zum ersten Mal auf den Spiegel eines neuen Teleskops fällt. Das gilt nicht nur für das Fernrohr selbst, sondern auch für die… …   Deutsch Wikipedia

  • First Light —    A term used by astronomers which refers to the first time a telescope is used.    When the telescope is first used, it is said to Observe First Light …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • first light — See at first light …   English idioms

  • first light — noun Dawn; sunrise; the moment at which the sun can first be seen on the horizon …   Wiktionary

  • first light — dawn, daybreak, first rays of sun …   English contemporary dictionary

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