Credit & Copyright: HK (The League of Lost Causes)
Explanation:
What is that light in the sky?
Perhaps one of humanity's more common questions,
an answer may result from a few quick observations.
For example -- is it moving or blinking?
If so, and if you live near a city,
the answer is typically an airplane,
since planes are so numerous and so few stars and
satellites are bright enough to be seen over the din
of
artificial city lights.
If not, and if you live far from a city, that bright light is likely a planet such
as
Venus or
Mars --
the former of which is constrained to appear near the horizon just before dawn or
after dusk.
Sometimes the low apparent motion of a distant
airplane near the horizon makes it hard to tell from a
bright planet,
but even this can usually be discerned by the plane's motion over a few minutes.
Still unsure?
The featured chart gives a sometimes-humorous but mostly-accurate assessment.
Dedicated sky enthusiasts will likely note -- and are
encouraged to provide -- polite corrections.
Chart translations:
Spanish,
Italian,
Polish,
Tamil,
Kannada,
Latvian,
and
Norwegian
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:
sky - light - небо - невооруженным глазом
Публикации со словами: sky - light - небо - невооруженным глазом | |
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