TWILIGHT: Half-light - Deepstash
TWILIGHT: Half-light

TWILIGHT: Half-light

  • from Old English twi- ‘two’ (used in an obscure sense) + light (English) = twilight (late middle English)

-OxfordLanguages

  • literally 'second light, half-light'

--wiktionary

Twilight occurs when Earth's upper atmosphere scatters and refracts sunlight which illuminates the lower atmosphere.

The morning twilight is often called dawn , while the evening twilight is also known as dusk .

There are 3 Types of Twilight:

  1. Civil Twilight
  2. Nautical Twilight
  3. Astronomical Twilight

Astronomers define the 3 stages of twilight on the basis of how far the Sun is below the horizon.

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samsalt

Jack of all people-related trades, master of none. Majored in Psychology, Customer Service Assoc for a few Years, HR Officer for 4, Manager and ESL Teacher for over 11 yrs now, an artist since birth.

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Nautical Twilight

This period is less bright than civil twilight.Artificial light is needed for outdoor activities

Nautical twilight occurs when the center of the sun is between 6 and 12 degrees below the horizon

Nautical dawn is the time when the sun is 12 degrees below the horizon in the morning.

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