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- DictionaryTwi·light/ˈtwīˌlīt/
noun
- 1. the soft glowing light from the sky when the sun is below the horizon, caused by the refraction and scattering of the sun's rays from the atmosphere: "she looked out on the beautiful twilight"
- 2. a period or state of obscurity, ambiguity, or gradual decline: "he was in the twilight of his career"
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the low level of light when it is late in the day, just before the darkness of night, or this period of the day. fig. Twilight is also any late period, when the end of something is near: The book presents a compelling portrait of the singer in the twilight of her career.
Twilight definition: the soft, diffused light from the sky when the sun is below the horizon, either from daybreak to sunrise or, more commonly, from sunset to nightfall.. See examples of TWILIGHT used in a sentence.
- Scattering Sunlight
- Types of Twilight
- Civil Twilight, Dawn, and Dusk
- Brightest Form of Twilight
- Nautical Twilight, Dawn, and Dusk
- Astronomical Twilight, Dawn, and Dusk
- Shorter Twilight at The Equator
- Twilight at The Poles
Twilight occurs when Earth's upper atmosphere scatters and refracts sunlight which illuminates the lower atmosphere. A number of atmospheric phenomenaand colors can be seen during twilight.
There are three types of twilight: 1. Civil twilight 2. Nautical twilight 3. Astronomical twilight Astronomers define the three stages of twilight on the basis of how far the Sun is below the horizon. The morning twilight is often called dawn, while the evening twilight is also known as dusk. Astronomical terms & definitions
Civil twilightoccurs when the Sun is less than 6 degrees below the horizon. In the morning, civil twilight begins when the Sun is 6 degrees below the horizon and ends at sunrise. In the evening, it begins at sunset and ends when the Sun reaches 6 degrees below the horizon. Civil dawnis the moment when the center of the Sun is 6 degrees below the ho...
Civil twilight is the brightest form of twilight. There is enough natural sunlight during this period that artificial light may not be required to carry out outdoor activities. Only the brightest celestial objects can be observed by the naked eye during this time. Several countries use this definition of civil twilight to make laws related to aviat...
Nautical twilightoccurs when the center of the Sun is between 6 degrees and 12 degrees below the horizon. This twilight period is less bright than civil twilight and artificial light is generally required for outdoor activities. Nautical dawnoccurs when the Sun is 12 degrees below the horizon during the morning. Nautical duskoccurs when the Sun is ...
Astronomical twilightoccurs when the Sun is between 12 degrees and 18 degrees below the horizon. Astronomical dawnis the time when the center of the Sun is at 18 degrees below the horizon. Astronomical duskis the instant when the center of the Sun is at 18 degrees below the horizon. During astronomical twilight, most celestial objects can be observ...
The length of twilight depends on the latitude. Equatorialand tropical regions have shorter twilight than locations on higher latitudes. During summer months at higher latitudes, there may be no distinction between astronomical twilight after sunset and astronomical twilight before sunrise. This happens when the Sun never goes more than 18 degrees ...
Around the North Pole and the South Pole, each day-night cycle spans an entire year. In the summer, the poles experience Polar Day or Midnight Sun, when the Sun is up in the sky for several months; in the winter, during the Polar Night, the Sun does not rise for several months. The transitions between Polar Day and Polar Night are marked by lengthy...
the period of time during which the sun is a specified angular distance below the horizon (6°, 12°, and 18° for civil twilight, nautical twilight, and astronomical twilight, respectively)
twilight. noun. /ˈtwaɪlaɪt/. [uncountable] the faint light or the period of time at the end of the day after the sun has gone down It was hard to see him clearly in the twilight. We went for a walk along the beach at twilight. Take your English to the next level.
a state in which things are strange, mysterious or secret; a state that exists on the dividing line between two things. The dissidents lived in a twilight world of hushed voices and secret meetings. They lived in the twilight zone on the fringes of society.
TWILIGHT meaning: the time just before it becomes completely dark in the evening. Learn more.
