Open register
Sources and
image credits.
Photography records one exposure; references explain the underlying light. Neither source type guarantees future access or conditions.
Observation references
The field methods are original editorial synthesis. Standard astronomical terms are checked against established educational sources. Current access, weather, transport, security and protected-area arrangements are intentionally left to responsible authorities and legitimate local expertise.
- Encyclopaedia Britannica: TwilightGeneral explanation of twilight as diffuse illumination when the sun is below the horizon. Visit reference.
- Royal Museums Greenwich: What is twilight?Accessible distinction between civil, nautical and astronomical twilight. Visit reference.
- Original Commons recordsImage creator and licence information below follows the original file-description page. Each page remains the authoritative reuse record.
Photographs
- White Desert star trailCreator: Ahmed Khalil · Licence: CC BY-SA 4.0 · Original file page.
- Mushroom Rock — Night — White DesertCreator: Moataz EL-Sharaky · Licence: CC BY-SA 4.0 · Original file page.
- Milky way 255Creator: Alaa Adel Awaad · Licence: CC BY-SA 4.0 · Original file page.
- Luxor, Egypt, River Nile sunsetCreator: Vyacheslav Argenberg · Licence: CC BY 4.0 · Original file page.
- Sunrise from Mount Sinai or Gabal MusaCreator: Sara Nabih · Licence: CC BY-SA 4.0 · Original file page.
- Siwa Oasis, sunset on MaraqiCreator: Vincent Battesti · Licence: CC BY-SA 4.0 · Original file page.
Local image handling
The photographs are stored locally in three responsive JPEG sizes. Layout crops may vary by screen, but an image is never relabelled as a different place. File metadata has been removed from the delivery copies; the human-readable credit and original licence page remain the source of attribution.