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Астронет: Астрономическая картинка дня Сатурн и свет да Винчи http://variable-stars.ru/db/msg/1468481/eng |
Credit & Copyright: Tunc Tezel
(TWAN)
Explanation:
On February 2nd early morning risers saw Saturn near an old Moon
low on the eastern horizon.
On that date bright planet, sunlit crescent, and faint lunar night
side were captured in this predawn skyscape from Bursa, Turkey.
Of course the Moon's ashen glow is
earthshine,
earthlight reflected from the Moon's night side.
A description of earthshine, in terms of sunlight
reflected by Earth's oceans illuminating
the Moon's dark surface, was written over 500 years ago by
Leonardo da Vinci.
On May 2nd an old Moon also rose in the predawn twilight.
On that date its ashen glow shared the sky with Venus,
the brilliant morning star.
May 2nd also marked the 500th anniversary
of Leonardo's
death in 1519.
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.