Астронет: Астрономическая картинка дня Полярное сияние надо льдом http://variable-stars.ru/db/msg/1332425/eng |
Credit & Copyright: Stéphane
Vetter
(Nuits sacrées)
Explanation:
Not from a snowglobe, this expansive fisheye
view of ice and sky was captured on February 1, from
Jökulsárlón Beach,
southeast Iceland, planet Earth.
Chunks of glacial ice on the black sand beach glisten in the
light of a nearly full moon surrounded by
a shining halo.
The 22 degree lunar halo itself is created by ice crystals in
high, thin clouds refracting the moonlight.
Despite the bright moonlight, curtains of aurora still
dance through the surreal scene.
In early February,
their activity was triggered by Earth's restless magnetosphere
and the energetic wind from a
coronal hole
near the Sun's south pole.
Bright Jupiter, also near opposition, is visible at the
left, beyond the icy lunar halo.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.