EASA NAV(A)basic
22. Civil twilight is the period when the midpoint of the Sun's disk is…
Answer
6° or less below the true horizon
Explanation
Civil twilight extends until the Sun's midpoint is 6° below the **true horizon**, before sunrise or after sunset. **Key takeaway:** The civil-twilight depression is 6°. **Glossary:** True horizon: the geometric horizon, excluding local visual obstructions.
Related Questions
- What distance corresponds to one degree of latitude along any meridian?(basic)
- What is the distance between 150°E and 151°E along the equator?(basic)
- What is the difference in latitude between A (12°53′30″N) and B (07°34′30″S)?(basic)
- At approximately which latitudes are the Earth's two polar circles—the Arctic Circle and the Antarctic Circle—located?(basic)
- At latitudes other than the equator, one degree of longitude spans less distance than one degree of longitude at the equator.(basic)
Want to practice more questions like this?
Join myBenkio free and practice past questions for your Nigerian university courses with AI explanations for every answer.
Start Practicing Free