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NASA needs your smartphone during April's solar eclipse (www.popsci.com)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 7 months ago (1 children)

Earth’s natural satellite can serve as a valuable research partner in measuring the sun’s oblateness. This is due to a phenomenon known as “Baily’s beads,” which are the tiny flashes of light during an eclipse that occur as solar light passes over the moon’s rugged terrain of craters, hills, and valleys. Since satellite imagery has helped produce extremely detailed mappings of lunar topography, experts can match Baily’s beads to the moon’s features as it passes in front of the sun.

The way I'm guessing this works is: Baily's beads will be detectable on shitty cameras since they will be distinct flashes of light, and since we have very detailed information of the moon's topography they can determine information on the sun based on your phone's location and the timing of the flashes of light.

And if that is how it works, that is fuckin rad. A+ science.

[–] [email protected] 1 points 7 months ago

I'd really like to see the modeling on this. My brain just can't compute flashes that are discrete enough and useful enough to serve as data points.

Though once you get into advanced physics my brain starts to melt. And I guess even the idea that they're able to plot the exact angular position to use the topography information is kind of fucking up my head.