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  2. Twilight - Wikipedia

    en.wikipedia.org/wiki/Twilight

    Observers within 63°26' of the Equator can view twilight twice each day on every date between the month of the autumnal equinox and the month of vernal equinox between astronomical dawn, nautical dawn, or civil dawn, and sunrise as well as between sunset and civil dusk, nautical dusk, or astronomical dusk, i.e., from September 1 to March 31 of ...

  3. Earth's shadow - Wikipedia

    en.wikipedia.org/wiki/Earth's_shadow

    The shadow's fringe appears as a dark bluish to purplish band that stretches over 180° of the horizon [3] [4] opposite the Sun, i.e. in the eastern sky at dusk and in the western sky at dawn. Before sunrise, Earth's shadow appears to recede as the Sun rises; after sunset, the shadow appears to rise as the Sun sets. [3]

  4. Lights in the Dusk - Wikipedia

    en.wikipedia.org/wiki/Lights_in_the_Dusk

    Lights in the Dusk (Finnish: Laitakaupungin valot) is a 2006 Finnish comedy-drama film written, directed, produced and edited by Aki Kaurismäki. Starring Janne Hyytiäinen, Ilkka Koivula , and Maria Järvenhelmi , the film was presented at the 2006 Cannes Film Festival . [ 1 ]

  5. Dusk - Wikipedia

    en.wikipedia.org/wiki/Dusk

    The time of dusk is the moment at the very end of astronomical twilight, just before the minimum brightness of the night sky sets in, or may be thought of as the darkest part of evening twilight. [4] However, technically, the three stages of dusk are as follows: At civil dusk, the center of the Sun's disc goes 6° below the horizon in the ...

  6. Orders of magnitude (illuminance) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    Factor ()Multiple Value Item 0 0 lux 0 lux Absolute darkness 10 −4: 100 microlux 100 microlux: Starlight overcast moonless night sky [1]: 140 microlux: Venus at brightest [1]: 200 microlux

  7. Zodiacal light - Wikipedia

    en.wikipedia.org/wiki/Zodiacal_light

    The zodiacal light appears as a column, brighter at the horizon and tilted at the angle of the ecliptic. The light scattered from extremely small dust particles is strongly forward scattering, although the zodiacal light actually extends all the way around the sky, hence it is brightest when observing at a small angle with the Sun. This is why ...