Timeline for Solar Eclipse Path of Totality
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Aug 24, 2017 at 22:35 | history | edited | Marty Green | CC BY-SA 3.0 |
added 197 characters in body
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| Aug 24, 2017 at 20:20 | history | edited | stafusa | CC BY-SA 3.0 |
Corrected a typo.
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| Aug 23, 2017 at 22:57 | comment | added | Marty Green | Sorry, it's not a geometrical diagram. It's the visual graphic in the right-hand column that shows pictorially the shadow racing across the country, while pointing with a grey line to the position of the sun. | |
| Aug 23, 2017 at 22:44 | comment | added | sammy gerbil | Which animation are you referring to? I don't see one which shows the Sun-Moon-Earth geometry or the orbital motion of the Earth. | |
| Aug 23, 2017 at 21:33 | comment | added | Marty Green | I found the Wikipedia visual after I'd already come up with the math. And the visual totally shows the geometry of what's happening. It's the absolute speed of the moon relative to the orbital (not rotational) speed of the earth which explains everything.. | |
| Aug 23, 2017 at 21:31 | comment | added | Marty Green | My first instinct was to explain the eclipse in terms of leverage and parallax, exactly as you explained it @sammygerbil. But then I couldn't justify the high speed at which the shadow traveled from west to east. The explanation which I have posted here is very different (it seems to me) from the way I tried to explain it at first. | |
| Aug 23, 2017 at 21:18 | comment | added | sammy gerbil | My explanation is not incompatible with yours. In your explanation the line between the Sun and the Earth is stationary, in my explanation the Earth is stationary. The Sun overtaking the Moon as they both cross the sky from E to W is the same as the Moon passing between the Earth and the Sun in a W to E direction as the Earth rotates. | |
| Aug 23, 2017 at 19:05 | history | edited | Marty Green | CC BY-SA 3.0 |
added 197 characters in body
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| Aug 23, 2017 at 4:21 | history | answered | Marty Green | CC BY-SA 3.0 |