• ES Picture of the Day 18 2022

    From Dan Richter@1:317/3 to All on Fri Feb 18 11:01:06 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Clouds In a Fiery Sunset

    February 18, 2022

    DSC_0090m ep

    Photographer: Teresa Molinaro

    Summary Authors: Teresa Molinaro; Cadan Cummings

    Sunrise and sunset are beautiful times of the day to photograph the
    gradually changing colors and clouds of our sky. This is embodied
    by the photo above from the province of Palermo, Sicily on the evening
    of July 4, 2021, when the clouds appeared to be set ablaze in a fiery
    red hue. At around 9pm local time, the sky was suddenly tinged with
    color that quickly changed from orange to red. The reason the sky at
    sunrise and sunset is so vibrantly colored is due to light
    scattering. As light passes through the atmosphere, its direction
    changes when it interacts with gases and small molecules on the way to
    our eyes. Longer wavelengths of light (red and orange) are not as
    affected by scatter as shorter wavelength (blue and violet) light. When
    the Sun angle is low on the horizon, the sunlight must pass through
    comparably more atmosphere, which causes increased scattering of blue
    and violet spectra. At sunset and sunrise, this unequal scattering is
    why we see mainly red, orange, and yellow light on the horizon.

    Photo details: Nikon D3400, 70 mm lens, 1/5 second exposure, f/4.5,
    ISO-800,
    * Bagheria, Sicily, Italy Coordinates: 38.083, 13.500

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    Sun Links

    * NASA Solar Dynamics Observatory
    * NASA Solar Eclipse Page
    * NOAA Solar Calculator
    * The Sun-Earth Connection: Heliophysics
    * The Sunspot Cycle
    * Solar System Exploration: The Sun
    * The Sun Now
    * This Week’s Sky

    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

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  • From Dan Richter@1:317/3 to All on Fri Nov 18 11:01:04 2022
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.


    Partial Solar Eclipse of October 25, 2022, Observed over Athens

    November 18, 2022


    Ecl-sol-2022-10-25-labels

    Photographer: Anthony Ayiomamitis

    Summary Author: Anthony Ayiomamitis

    We were very fortunate to have had a great stretch of weather here in
    Greece during late October that allowed us to observe the second and
    final solar eclipse for 2022. This was a partial eclipse, on
    October25, but it shaded as much as 86% of the Sun for some
    parts of western Siberia. It was visible to residents of Europe,
    northeast Africa, the Middle East and western Asia. The eclipse depth
    for Athens, Greece, was approximately 38%, with the eclipse having a
    duration of two hours and fifteen minutes. Maximum eclipse occurred at
    13:42:56 (UT+3 local time). Note, as an added bonus there were three
    active solar regions; one at each of the limbs to the east and to
    the west (AR3131 and AR3126, respectively) as well as another fainter
    group just south of center (AR3130).

    Athens, Greece Coordinates: 37.9838, 23.7275


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    More...

    Sun Links

    * NASA Solar Dynamics Observatory
    * NASA Solar Eclipse Page
    * NOAA Solar Calculator
    * The Sun-Earth Connection: Heliophysics
    * The Sunspot Cycle
    * Solar System Exploration: The Sun
    * The Sun Now
    * This Week’s Sky

    -
    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.

    https://epod.usra.edu

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    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)