Why are solar eclipses so short compared to lunar eclipses?

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Discussion Overview

The discussion revolves around the duration of solar eclipses compared to lunar eclipses, exploring the reasons behind the differences in their lengths. The scope includes conceptual understanding of celestial mechanics and shadow dynamics.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that the moon moves in and out of view more quickly than the Earth does during a lunar eclipse.
  • Another participant proposes that the Earth's shadow is significantly larger than that of the moon, leading to a shorter duration of solar eclipses since only a small region on Earth experiences the moon's shadow.
  • A later reply agrees with the idea that the Earth's larger size means it takes longer for the moon to traverse its shadow, while also noting that the moon's shadow does not cover most of the Earth.
  • One participant humorously adds that the moon is "much less nutritious" than the sun, suggesting a playful reason for the difference in eclipse durations.

Areas of Agreement / Disagreement

Participants express differing views on the reasons for the duration differences, with some agreeing on the size of the shadows while others introduce humorous or non-standard explanations. The discussion remains unresolved regarding the primary factors influencing eclipse durations.

Contextual Notes

Some claims depend on the definitions of shadow sizes and the mechanics of celestial movements, which are not fully explored in the discussion.

nukeman
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Is it just because the moon moves in and out of view quicker than the Earth moving in and out of view as to a lunar eclipse?

I can't find a simpe definition out there?

Thanks!
 
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I think its mostly because the Earth's shadows is significantly larger than that of the moon. In a solar eclipse, the entire sun is only blocked for a small region on the surface of the Earth (i.e. not even the entire Earth is in the moon's shadow). For a lunar eclipse, more than the total moon is covered in shadow (i.e. even if the moon moves a little, it's still entirely in the shadow).
 
That's right. It boils down to the Earth itself being much larger then the moon, so it takes a while for the moon to get through Earth's large shadow. But as Zhermes said above, the moon's shadow doesn't even cover most of the Earth.

Also because the moon is much less nutritious then the sun so the demons have to spend longer eating it before they are full. :)
 
Algr said:
Also because the moon is much less nutritious then the sun so the demons have to spend longer eating it before they are full. :)

:biggrin:
 

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