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Астронет: Астрономическая картинка дня Четыре башни и Луна в равноденствие http://variable-stars.ru/db/msg/1463133/eng |
Credit & Copyright: Javier Martinez Moran
Explanation:
The first
Full Moon of northern spring
rises behind four distant towers in this
telescopic view.
In an image captured from some 40 kilometers west of the city of Madrid,
this moonrise also represents a near coincidence of the full lunar phase with
lunar perigee and the
March equinox.
Close to the horizon, the Full Moon's strangely rippled and distorted
shape has more to do with the long sight-line through a
layered atmosphere, though.
Tantalizing visible effects of the substantial atmospheric refraction
include the appearance of a thin floating sliver just above the lunar disk.
The remarkable optical mirage is related to the more commonly witnessed
green flash
of the setting Sun.
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.