astronomical twilight

noun

The period in which the sun is between 12° and 18° below the horizon in the morning and evening.

Meanings

nounastronomical twilight (countable and uncountable, plural astronomical twilights)

plural astronomical twilights

  1. countableuncountableThe period in which the sun is between 12° and 18° below the horizon in the morning and evening.

Translations

Dutch astronomische schemering
  • astronomische schemeringperiod of partial darkness
Finnish astronominen hämärä
  • astronominen hämäräperiod of partial darkness
Icelandic stjörnurökkur
  • stjörnurökkurperiod of partial darkness
Cite this entry
APA

astronomical twilight. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/astronomical%20twilight

MLA

“astronomical twilight.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/astronomical%20twilight. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “astronomical twilight,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/astronomical%20twilight.

Source: astronomical twilight on Wiktionary, CC BY-SA 4.0.