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  2. Optical phenomenon - Wikipedia

    en.wikipedia.org/wiki/Optical_phenomenon

    Common optical phenomena are often due to the interaction of light from the Sun or Moon with the atmosphere, clouds, water, dust, and other particulates. One common example is the rainbow, when light from the Sun is reflected and refracted by water droplets. Some phenomena, such as the green ray, are so rare they are sometimes thought to be ...

  3. Parhelic circle - Wikipedia

    en.wikipedia.org/wiki/Parhelic_circle

    A crisp parhelic circle (horizontal line) over South Pole Station. Photo: John Bortniak, NOAA, January 1979. A halo display observed over the South Pole. Featured in the photo are several distinct phenomena: A parhelic circle (horizontal line), a 22° halo (circle) with two sundogs (bright spots), and an upper tangent arc.

  4. List of atmospheric optical phenomena - Wikipedia

    en.wikipedia.org/wiki/List_of_atmospheric...

    Atmospheric optical phenomena include: Afterglow; Airglow; Alexander's band, the dark region between the two bows of a double rainbow. Alpenglow; Anthelion; Anticrepuscular rays; Aurora (northern and southern lights, aurora borealis and aurora australis) Belt of Venus; Brocken Spectre; Circumhorizontal arc; Circumzenithal arc; Cloud iridescence ...

  5. Category:Optical phenomena - Wikipedia

    en.wikipedia.org/wiki/Category:Optical_phenomena

    Atmospheric optical phenomena (6 C, 96 P) C. Color appearance phenomena (12 P) M. Magneto-optic effects (17 P) O. Optical illusions (6 C, 154 P, 11 F) R. Refraction ...

  6. Halo (optical phenomenon) - Wikipedia

    en.wikipedia.org/wiki/Halo_(optical_phenomenon)

    A halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') [1] is an optical phenomenon produced by light (typically from the Sun or Moon) interacting with ice crystals suspended in the atmosphere. Halos can have many forms, ranging from colored or white rings to arcs and spots in the sky.

  7. Sunbeam - Wikipedia

    en.wikipedia.org/wiki/Sunbeam

    Anticrepuscular rays – Meteorological optical phenomenon; Light beam – Projection of light energy; Earth's shadow – Shadow that Earth itself casts through its atmosphere and into outer space; Rayleigh scattering – Light scattering by small particles; Sunlight – Light emitted by the Sun

  8. Belt of Venus - Wikipedia

    en.wikipedia.org/wiki/Belt_of_Venus

    The Belt of Venus – also called Venus's Girdle, the antitwilight arch, or antitwilight [1] – is an atmospheric phenomenon visible shortly before sunrise or after sunset, during civil twilight. It is a pinkish glow that surrounds the observer, extending roughly 10–20° above the horizon .

  9. Stroboscopic effect - Wikipedia

    en.wikipedia.org/wiki/Stroboscopic_effect

    The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous rotational or other cyclic motion is represented by a series of short or instantaneous samples (as opposed to a continuous view) at a sampling rate close to the period of the motion.