twilight based on the angle of the sun in relation to the horizon and the resulting level of light in the sky. <em>Civil twilight<\/em> is the lightest (or least dark) of the three\u2014when the sun is between 0 and 6 degrees below the horizon.\r\n\r\nIn general, the term <em>twilight<\/em> most commonly refers to the period after sunset before total darkness, but it can also refer to the period before sunrise. <em>Civil twilight <\/em>occurs in both cases\u2014it is the time immediately before sunrise and the time immediately after sunset.\r\n\r\nThe exact timing and length of <em>civil twilight <\/em>varies by location and the time of year.\r\n\r\nTwo other divisions of twilight are called <em>nautical twilight <\/em>(when the sun is between 6 and 12 degrees) and <em><a href=https://www.dictionary.com/"https:////www.dictionary.com//browse//astronomical-twilight/">astronomical twilight<\/a><\/em> (often between 12 and 18 degrees).\r\n\r\nThese terms are typically used in technical and scientific contexts, including navigation, astronomy, meteorology, and related fields.\r\n\r\nThe term <em>civil twilight<\/em> is sometimes used more casually to refer to the time shortly after sunset when there is still some light in the sky (regardless of whether it is technically <em>civil twilight<\/em>). Still, in casual, nontechnical contexts, the term <em>twilight<\/em> is much more commonly used.\r\n\r\nExample: <em>In ideal conditions, some stars are bright enough to be observed during civil twilight. <\/em>"},"categories":{},"excerpt":""}"/>

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