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2. Baily's beads - Wikipedia

   en.wikipedia.org/wiki/Baily's_beads

   While Baily's beads are seen briefly for a few seconds at the center of the eclipse path, their duration is maximized near the edges of the path of the umbra, lasting around 90 seconds. It is not safe to view Baily's beads or the diamond ring effect without proper eye protection because in both cases the photosphere is still visible. [5]

3. Before making eclipse history, this astronomer documented ...

   www.aol.com/making-eclipse-history-astronomer...

   Those are known as Baily’s beads, named after English astronomer Francis Baily, who first observed the phenomenon during a total eclipse of the sun May 15, 1836. His vivid descriptions of the ...

4. Beyond totality: Rare phenomena to watch out for during the ...

   www.aol.com/syzygy-baily-beads-diamond-ring...

   Eerie skies, a glistening “diamond ring effect,” Baily’s beads and a halo around the sun are some of the phases to watch for during the April 8 total solar eclipse.

5. Optical phenomenon - Wikipedia

   en.wikipedia.org/wiki/Optical_phenomenon

   Baily's beads, grains of sunlight visible in total solar eclipses. camera obscura; Cathodoluminescence; Caustics; Chatoyancy, cat's eye gems such as chrysoberyl cat's eye or aquamarine cat's eye; Chromatic polarization; Diffraction, the apparent bending and spreading of light waves when they meet an obstruction; Dispersion

6. Lunar limb - Wikipedia

   en.wikipedia.org/wiki/Lunar_limb

   The irregularity of the lunar limb is the cause of Baily's beads, which are collimated rays of sunlight that shine through in some places while not in others during a solar eclipse. The contrast of the bright lunar disc against a black night sky makes the lunar limb a popular target when testing telescope optics (including binoculars).

7. Francis Baily - Wikipedia

   en.wikipedia.org/wiki/Francis_Baily

   Francis Baily (28 April 1774 – 30 August 1844) was an English astronomer.He is most famous for his observations of "Baily's beads" during a total eclipse of the Sun. Baily was also a major figure in the early history of the Royal Astronomical Society, as one of the founders and as the president four times.

8. PSA—Here's Why Solar Eclipse Glasses Are a Must (But Cameras ...

   www.aol.com/lifestyle/danger-lurking-behind...

   It will be a total solar eclipse, meaning that the moon will completely block the sun, revealing its ghostly outer atmosphere called the corona. ... Baily's Beads = solar eclipse glasses required ...

9. Solar eclipse of August 7, 1869 - Wikipedia

   en.wikipedia.org/wiki/Solar_eclipse_of_August_7...

   A total solar eclipse occurred at the Moon's ascending node of orbit between Saturday, August 7 and Sunday, August 8, 1869, with a magnitude of 1.0551. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth.