Credit & Copyright: J. C. Casado
Explanation:
Many think it is just a myth.
Others think it is true but its cause isn't known.
Adventurers pride themselves on having seen it. It's a green flash from the
Sun.
The truth is the
green flash does exist and its cause is well understood.
Just as the setting
Sun disappears completely from view,
a last glimmer appears startlingly green.
The effect is typically visible only from locations with a low,
distant horizon, and lasts just a few seconds. A
green flash is also visible for a rising
Sun, but takes better timing to spot.
A slight variant of this was caught in the above photograph,
where much of the
Sun was still visible,
but the very top appeared momentarily green. The
Sun itself does not turn
partly green, the effect is caused by layers of the
Earth's atmosphere acting like a prism.
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 2025 |
Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr' |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
|
Publikacii s klyuchevymi slovami:
Sun - green flash - Solnce - zelenyi luch - atmosfera Zemli - Refrakciya atmosfernaya
Publikacii so slovami: Sun - green flash - Solnce - zelenyi luch - atmosfera Zemli - Refrakciya atmosfernaya | |
Sm. takzhe:
Vse publikacii na tu zhe temu >> | |
