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It does somewhat bury the lede: > The darkest lunar eclipses all occurred within a year or so of major volcanic eruptions. Which if correct, has predictive p
by SideburnsOfDoom 4y ago
It does somewhat bury the lede:
> The darkest lunar eclipses all occurred within a year or so of major volcanic eruptions.
Which if correct, has predictive power about future eruptions, since future lunar eclipses can be accurately predicted.
- gattilorenz 4y agoIt’s the other way around. The eclipse is darker than usual because of volcanic ashes in the atmosphere. You can certainly predict a darker-than-usual lunar eclipse (if a volcano recently erupted), if that’s your thing.
- SideburnsOfDoom 4y agoI see! thanks for explaining the mechanism. I should have read more. So the "darker than usual" aspect won't be from astronomical calculations, but from the historical records. Seems like it: "By putting together the information from ice cores and the descriptions from medieval texts we can now make better estimates of when and where some of the biggest eruptions of this period occurred."