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  2. Halo (optical phenomenon) - Wikipedia

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

    Among the best-known halos is the 22° halo, often just called "halo", which appears as a large ring around the Sun or Moon with a radius of about 22° (roughly the width of an outstretched hand at arm's length).

  3. 22° halo - Wikipedia

    en.wikipedia.org/wiki/22°_halo

    22° halo around the Sun 22° halo around the Moon. A 22° halo is an atmospheric optical phenomenon that consists of a halo with an apparent diameter of approximately 22° around the Sun or Moon. Around the Sun, it may also be called a sun halo. [1] Around the Moon, it is also known as a moon ring, storm ring, or winter halo.

  4. Corotation circle - Wikipedia

    en.wikipedia.org/wiki/Corotation_circle

    The corotation circle is the circle around the galactic center of a spiral galaxy, where the stars move at the same speed as the spiral arms. The radius of this circle is called the corotation radius. Inside the circle the stars move faster and outside they move slower than the spiral arms. The Sun is located near the corotation circle of the ...

  5. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  6. Circumzenithal arc - Wikipedia

    en.wikipedia.org/wiki/Circumzenithal_arc

    The circumzenithal arc, also called the circumzenith arc (CZA), the upside-down rainbow, and the Bravais arc, [1] is an optical phenomenon similar in appearance to a rainbow, but belonging to the family of halos arising from refraction of sunlight through ice crystals, generally in cirrus or cirrostratus clouds, rather than from raindrops.

  7. Trailer (promotion) - Wikipedia

    en.wikipedia.org/wiki/Trailer_(promotion)

    Trailer for Universal Pictures' science-fiction horror film Frankenstein (1931). A trailer (also known as a preview, coming attraction, or attraction video) is a short advertisement, originally designed for a feature film, which highlights key scenes of upcoming features intended to be exhibited in the future at a movie theater or cinema.

  8. The Hitchhiker's Guide to the Galaxy (film) - Wikipedia

    en.wikipedia.org/wiki/The_Hitchhiker's_Guide_to...

    The film trailer featured voice over work by Stephen Fry as the Guide, describing the Hitchhiker's Guide to the Galaxy ' s entry on movie trailers. An audio collection called "Additional Guide Entries", read by Fry, was released to iTunes to promote the film.

  9. These are the pedophile symbols you need to know to protect ...

    www.aol.com/news/2016-04-26-these-are-the...

    In March, a mother was horrified to find a pedophile symbol on a toy she bought for her daughter. Although the symbol was not intentionally placed on the toy by the company who manufactured the ...