Credit & Copyright: Jean-Marc Lecleire
Explanation:
Gazing skyward on a sunny day in May,
photographer Jean-Marc Lecleire captured this
engaging display
of ice halos
forming complete circles in the sky.
Recorded with a fish-eye lens from a spot near
the grand
Château de Chambord in France,
the picture looks
straight up, spanning almost 180 degrees from
horizon to horizon.
Surrounding the Sun is a halo
formed by sunlight refracting through
hexagonal-shaped ice crystals in
high, thin clouds.
The halo is circular and exactly 22 degrees in radius,
but it looks squashed because of the
distortion
of the extremely wide-angle lens.
Surrounding the zenith (the point directly above the observer)
and always at the same altitude as the
Sun is a lovely
parhelic circle,
caused by sunlight
reflecting from ice crystals with nearly vertical faces.
On average more common than rainbows,
beautiful ice halos can often be seen in planet Earth's sky
by those who know
how to look
for them.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Публикации с ключевыми словами:
halo - sky - небо
Публикации со словами: halo - sky - небо | |
См. также:
Все публикации на ту же тему >> |