СОЛНЕЧНОЕ ЗАТМЕНИЕ И БРИЛЛИАНТЫ В НЕБЕ
Aug. 9th, 2009 08:19 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
Diamonds in a Cloudy Sky
Выдающийся снимок
Credit & Copyright: Óscar Martín Mesonero (OSAE), SAROS Group
Explanation: Cloudy skies over Wuhan, China hid the delicate solar corona during July's total eclipse of the Sun. Still, the Moon's silhouette was highlighted by these glistening diamonds as the total eclipse phase ended. Caused by bright sunlight streaming through dips and valleys in the irregular terrain along the Moon's edge, the effect is known as Baily's Beads, named after Francis Baily who called attention to the phenomenon in 1836. The dramatic appearance of the beads at the beginning or end of a total solar eclipse is also known as the Diamond Ring effect. In this remarkable image, a small, pinkish solar prominence can also be seen along the edge, below the diamonds.(розовый свет - это Солнце пробивается)
Baily's Beads near Solar Eclipse Totality
Credit & Copyright: Leonid Durman
Странные световые эффекты...
Explanation: Just before the Sun blacks out, something strange occurs. As the Moon moves to completely cover the Sun in a total solar eclipse, beads of bright sunlight stream around the edge of the Moon. This effect, known as Baily's beads, is named after Francis Baily who called attention to the phenomenon in 1836. Although, the number and brightness of Baily's beads used to be unpredictable, today the Moon is so well mapped that general features regarding Baily's beads are expected. When a single bead dominates, it is called the diamond ring effect, and is typically seen just before totality. Pictured above, a series of images recorded Baily's beads at times surrounding the recent total solar eclipse visible from Novosibirsk, Russia. The complete series can be seen by scrolling right. At the end of totality, as the Sun again emerges from behind the moon, Baily's beads may again be visible -- but now on the other side of the Moon.
http://en.wikipedia.org/wiki/Diamond_ring_effect_(solar_eclipse) вики, информация
Diamond ring effect
лучи, подобные этим, пробиваются при полном затмениивдоль края Луны, как сквозь дыры в тучах, и создают неповторимый эффект.
Anticrepuscular Rays Over Florida
Credit & Copyright: Daniel Herron
Explanation: What's happening over the horizon? Although the scene may appear somehow supernatural, nothing more unusual is occurring than a setting Sun and some well placed clouds. Strangely, the actual sunset was occurring in the opposite direction from where the camera was pointing. Pictured above are anticrepuscular rays. To understand them, start by picturing common crepuscular rays that are seen any time that sunlight pours though scattered clouds. Now although sunlight indeed travels along straight lines, the projections of these lines onto the spherical sky are great circles. Therefore, the crepuscular rays from a setting (or rising) sun will appear to re-converge on the other side of the sky. At the anti-solar point 180 degrees around from the Sun, they are referred to as anticrepuscular rays. While enjoying the sunset after visiting NASA's Kennedy Space Center in Florida, the photographer chanced to find that an even more spectacular sight was occurring in the other direction just over the Atlantic Ocean -- a particularly vivid set of anticrepuscular rays.
As the moon covers the last slice of the sun, the photosphere shining through the lunar valleys creates an effect called "Baily's beads." The last sliver of sun breaks up into a chain of bright pearls around the edge of the moon. The corona is visible on the other side of the moon at this point.
Baily's beads with a nice prominence on the left. Photo by Fred Espenak
As the last bit of photosphere disappears, you see something called the "diamond ring effect"—the beautiful inner corona forming a ring around the moon with a brilliant white jewel of light.
http://www.exploratorium.edu/eclipse/what2.html - описание с картинками
http://eclipse.gsfc.nasa.gov/eclipse.html -страничка НАСА - какие еще затмения и когда нас ждут?
http://knol.google.com/k/jay-m-pasachoff/eclipse/IDZ0Z-SC/wTLUGw?domain=knol.google.com&locale=ru# - много интересной инфо о затмениях