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  2. Atmospheric optics - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_optics

    The yellow color is due to the presence of pollutants in the smoke. Yellowish clouds caused by the presence of nitrogen dioxide are sometimes seen in urban areas with high air pollution levels. [22] Red, orange and pink clouds occur almost entirely at sunrise and sunset and are the result of the scattering of sunlight by the atmosphere.

  3. Large Sagittarius Star Cloud - Wikipedia

    en.wikipedia.org/wiki/Large_Sagittarius_Star_Cloud

    Being depleted of the gas and dust from which new stars form, the region contains no young blue stars. Instead, the brightest stars are K-type orange giants, which is why the Cloud has a yellowish tint on color photos. [2] The Galactic Center, which is obscured at visible wavelengths due to interstellar dust, lies about two degrees west of the ...

  4. Sky - Wikipedia

    en.wikipedia.org/wiki/Sky

    The Sun and sometimes the Moon are visible in the daytime sky unless obscured by clouds. At night, the Moon, planets, and stars are similarly visible in the sky. Some of the natural phenomena seen in the sky are clouds, rainbows, and aurorae. Lightning and precipitation are also visible in the sky.

  5. Night sky - Wikipedia

    en.wikipedia.org/wiki/Night_sky

    Paranal Observatory nights. [3] The concept of noctcaelador tackles the aesthetic perception of the night sky. [4]Depending on local sky cloud cover, pollution, humidity, and light pollution levels, the stars visible to the unaided naked eye appear as hundreds, thousands or tens of thousands of white pinpoints of light in an otherwise near black sky together with some faint nebulae or clouds ...

  6. Messier 78 - Wikipedia

    en.wikipedia.org/wiki/Messier_78

    M78 is easily found in small telescopes as a hazy patch and involves two stars of 10th and 11th magnitude. These two B-type stars, HD 38563 A and HD 38563 B, are responsible for making the cloud of dust in M78 visible by reflecting their light. [5] The M78 cloud contains a cluster of stars that is visible in the infrared. [2]

  7. Why science says clouds could disappear as solar eclipse ...

    www.aol.com/why-science-says-clouds-could...

    "If your sky is covered with mid-to-high-level clouds — cirrostratus, altostratus and/or cirrocumulus — you will likely be able to see the forward edge of the elliptical shadow move rapidly ...

  8. Corona (optical phenomenon) - Wikipedia

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

    Lunar corona A solar corona up Beinn Mhòr (South Uist). In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight (or, occasionally, bright starlight or planetlight) [1] by individual small water droplets and sometimes tiny ice crystals of a cloud or on a foggy glass surface.

  9. Will clouds spoil our view of the solar eclipse? Here's what ...

    www.aol.com/clouds-spoil-view-solar-eclipse...

    If clouds do obscure the view, there are many places to watch the total solar eclipse online.

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