A Sun Pillar

Discussion in 'Earth Science' started by wet1, Dec 31, 2002.

  1. wet1 Wanderer Registered Senior Member

    Messages:
    8,616

    Please Register or Log in to view the hidden image!



    A Sun Pillar
    Credit & Copyright: Dave Liquorice

    Have you ever seen a sun pillar? When the air is cold and the Sun is rising or setting, falling ice crystals can reflect sunlight and create an unusual column of light. Ice sometimes forms flat, stop-sign shaped crystals as it falls from high-level clouds. Air resistance causes these crystals to lie nearly flat much of the time as they flutter to the ground. Sunlight reflects off crystals that are properly aligned, creating the sun-pillar effect. In the above picture, a sun-pillar reflects light from a setting Sun.
     
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. Clockwood You Forgot Poland Registered Senior Member

    Messages:
    4,467
    And you hear a voice.... "~NOAH....I want you to build me an ark out of gopher wood...~"
     
  4. Google AdSense Guest Advertisement



    to hide all adverts.
  5. wet1 Wanderer Registered Senior Member

    Messages:
    8,616
    Somewhere within the bulk of scifourms is another post on the "green flash". There is also on on "The Glory" mainly seen by pilots but I think everyone has seen it. There are also the phenomena known as sun dogs. Some where else is another photo of a sun pillar, rare though they are.
     
  6. Google AdSense Guest Advertisement



    to hide all adverts.
  7. wet1 Wanderer Registered Senior Member

    Messages:
    8,616

    Please Register or Log in to view the hidden image!



    Shadow Cone of a Total Solar Eclipse
    Credit & Copyright: Olivier Staiger (High Moon)

    Sometimes, during a total eclipse of the Sun, a strange shadow of darkness can be seen stretching off into the distance. Called a shadow cone, they are visible because the Earth's atmosphere is not completely transparent, scattering sunlight and hence appearing blue during the day. Shadow cones are particularly dramatic for eclipses near the horizon, as geometry creates a long corridor of sun-blocked air. Visible above is a shadow cone caught during a total solar eclipse visible last month from South Australia. The eclipsed Sun itself still appears bright because of light from the surrounding corona. The digital camera on the left is zoomed in to show a better image of the actual eclipse.
     
  8. NileQueen Registered Senior Member

    Messages:
    170
    "Three Oklahoma helicopter pilots took some intriguing photos of
    lenticular clouds, which are often mistaken for UFOs because of
    their circular shape. However, the third photo shows a small
    round object in the center of the cloud, so the question is: do
    the photos show clouds, a UFO—or both?"
    http://www.unknowncountry.com/news/?id=2273

    Please Register or Log in to view the hidden image!

     
  9. wet1 Wanderer Registered Senior Member

    Messages:
    8,616
    Another sun pillar

    Please Register or Log in to view the hidden image!

     
  10. Firefly Registered Senior Member

    Messages:
    1,330
    That's wierd. The pillar's vertical?
     
  11. wet1 Wanderer Registered Senior Member

    Messages:
    8,616
    Yes, it is caused by ice crystals in the atmosphere.
     
  12. Rick Valued Senior Member

    Messages:
    3,336
  13. fingerlickingod Registered Member

    Messages:
    15
    I was always sure the sun pillars were actually Van Fanellia coming to take Hitomi back to Gaea with him.
     

Share This Page