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  • ES Picture of the Day 20 2022

    From Dan Richter@1:317/3 to All on Thu Jan 20 11:01:20 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.


    El Drago Tree on the Island of Tenerife

    January 20, 2022

    DSC07862EPODSUBMISS

    Photographer: Kevin Saragozza

    Summary Author: Kevin Saragozza

    During a holiday trip, I had the opportunity to admire the El Drago
    tree, also known as Drago Milenario or Drago de Icod de los Vinos. The
    tree is the oldest and largest living specimen of Dracaena draco,
    or dragon tree, found in Tenerife, Canary Islands, Spain. It is said to
    be a thousand years old, although its exact age is disputed. In
    addition to being beautiful to photograph, El Drago is one of the
    symbols of Tenerife and was declared a national monument in 1917.
    This specific tree has been depicted on the 1,000 peseta note and
    it is also part of the coat of arms of the municipality of Icod de
    los Vinos. In addition, El Drago is a popular subject in local legends.
    El Drago is about 65-69 feet (20-21 meters) tall and has a total
    circumference of about 65 feet (20 meters) from its more than 300 main
    branches. The trunk contains a 20 foot (6 meter) high cavity,
    accessible through a door, with a fan installed to provide ventilation.
    It is estimated to weigh about 154 US tons (140 tonnes). When it
    flowered in 1995, it had about 1,800 flowering branches, with its
    weight increasing by 7,700 pounds (3.5 tonnes) during the fruiting
    season.
    Photo details: Sony a7iii + canon 16 35f4 is, 1/200 sec. f/8 35 mm iso
    50
    * Icod de los Vinos, Tenerife, Canary Islands, Spain Coordinates:
    28.3671, -16.7138

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    Plant Links

    * Discover Life
    * Tree Encyclopedia
    * What are Phytoplankton?
    * Encyclopedia of Life - What is a Plant?
    * USDA Plants Database
    * University of Texas Native Plant Database
    * Plants in Motion
    * What Tree is It?

    -
    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 Thu Oct 20 12:00:38 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.


    Witches Broom in Cygnus

    October 20, 2022


    JohnC_Veil_witchesbroom_80minnebAFinal_ABE_ChumackHRweb (003)

    Photographer: John Chumack

    Summary Author: John Chumack

    Shown above is 52 Cygni (bright star at upper center) and NGC-6960
    (Veil Nebula – " The Witches Broom"), a supernova remnant found
    in the constellation of Cygnus, A massive star exploded about 5,000
    years ago leaving this beautiful filamentary remnant amongst a
    star-studded field of the Cygnus region of the Milky Way. Though it
    may look spooky at this time of year, the Veil Nebula is in essence a
    cloud of ionized gas and dust located about 2,400 light years from
    Earth. Image taken from my backyard in Dayton, Ohio on August 23, 2022.

    Photo details: Celestron 6-inch F5 Newtonian telescope; ZWO 294MC
    Cooled Cmos Camera; Celestron Coma Corrector; L-Enhance Filter; Bisque
    MYT mount; EAF; ASI Air app via Wi-Fi to my IPAD; 40 x 2-minute sub
    exposures; 80 minutes total integration time.


    Dayton, Ohio, Coordinates: 39.7589, -84.1916


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    Night Sky Links

    * Space Weather Live
    * Space Weather Live Forum
    * About the Moon
    * American Meteor Society
    * Arbeitskreises Meteore e.V.
    * Global City Lights
    * Heavens Above Home Page
    * The International Meteor Organization
    * Lunar and Planetary Institute
    * MoonConnection
    * NASA Eclipse Web Page
    * Understanding The Moon Phases

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

    https://epod.usra.edu

    --- up 33 weeks, 3 days, 20 minutes
    * Origin: -=> Castle Rock BBS <=- Now Husky HPT Powered! (1:317/3)
  • From Dan Richter@1:317/3 to All on Tue Dec 20 11:01:18 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.


    Lunar Green Flash Sequence

    December 20, 2022


    Lorenzo_1668252846638_raggio verde (002)

    Photographer: Lorenzo Busilacchi

    Summary Authors: Lorenzo Busilacchi; Jim Foster

    The photo sequence shows the green flash phenomenon during
    moonset on May 15, 2022, as observed from Porto Ottiolu, Sardinia,
    Italy. Most of us have heard the color “blue” used to describe the Moon
    but rarely is the color “green” mentioned. Green flashes and green
    colored rims of the Moon occur because of atmospheric dispersion –
    near the horizon our eyes detect separate images for red, yellow, and
    green colors. Since green is the topmost color we see, when atmospheric
    conditions are right a burst of green light may be briefly noted as the
    upper rim dips below the horizon.


    Porto Ottiolu, Budoni, Sardinia, Italy Coordinates: 40.7374, 9.7079


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    Atmospheric Effects Links

    * Atmospheric Optics
    * Optic Picture of Day: Gruppo Astrofili Galileo Galilei
    * Color and Light in Nature
    * The Colors of Twillight and Sunset
    * Refraction Index
    * Image Gallery: Atmospheric Effects
    * What is a Rainbow?

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

    https://epod.usra.edu

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