Jabarkan Galeri dari Aram-temaram dalam bahasa melayu

Bayang-bayang Bumi, yang kelihatan pada waktu aram

Twilight Calculator Compute twilight times.

Definition of Twilight US Naval Observatory.

Formulae to calculate twilight duration by Herbert Glarner.

The colors of twilight and sunset

HM Nautical Almanac Office Websurf Compute twilight times.

Geoscience Australia "Sunrise and sunset times" Compute twilight times.

An Excel workbook with VBA functions for twilight (dawn and dusk), sunrise, solar noon, sunset, and solar position (azimuth and elevation) by Greg Pelletier, translated from NOAA's online calculator for sunrise/sunset