Úplné zatmění Slunce
Stín na Zemi viděný z Mezinárodní vesmírné Stanice (ISS).
A merger of a space image from the NASA/ESA SOHO spacecraft and an image taken from Kastellorizo, Greece, by the Williams College Eclipse Expedition (from Williamstown, Massachusetts). Though SOHO can observe the solar corona on the face of the Sun and can observe the outer part of the solar corona, the "doughnut" between those images is not visible from Earth except during total solar eclipses. The Williams expedition is supported by grants from NSF, NASA, and National Geographic. The reddish image from SOHO shows the Sun's disk at temperatures around 60,000 - 80,000 K. The red image from SOHO shows gas at the millions of degrees typical of the sun's corona. Merging the eclipse image with the space image from SOHO allows astronomers to trace features in the corona from their bases on the Sun's surface up until the gas escapes into interplanetary space; some of this gas winds up hitting our Earth's upper atmosphere. The orientation of the eclipse image versus SOHO is an approximation. Credits: Jay Pasachoff, Bryce Babcock, Steven Souza, and Jesse Levitt, and the Williams College Eclipse Expedition.
Sluneční korona. JE viditelná jen při úplném zatmění Slunce.
Left: The sun creates a "diamond ring" effect as it emerges after totality. Right: Solar flares, or "prominences" are visible at the edge of the moon's shadow.
