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Астронет: Астрономическая картинка дня A Year in Sunsets http://www.variable-stars.ru/db/msg/1947767 |
Credit & Copyright: Wael Omar
Explanation:
A year in
sunsets, from April 2023 to March 2024, track along the
western horizon in these stacked panoramic views.
The
well-planed sequence
is constructed of images recorded
near the 21st day of the indicated month from the same location overlooking
Cairo, Egypt.
But for any location
on planet Earth
the yearly extreme northern (picture right)
and southern limits of the setting Sun
mark the solstice days.
The word solstice is from Latin for "Sun" and "stand still".
On the solstice date the seasonal drift of the
Sun's daily path through the sky appears to pause and reverse
direction in its
annual celestial journey.
Of course the Sun reaches a stand still on today's date.
The
21 December 2024 solstice
at 09:21 UTC is the moment of
the Sun's southernmost declination, the
start of astronomical winter
in the north and summer
in the south.
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.
Based on Astronomy Picture
Of the Day