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[Phys-L] solstice, analemma, equation of time



Io Saturnalia!

I am fond of this diagram, namely an analemma, showing the position
of the sun at noon each day:
https://upload.wikimedia.org/wikipedia/commons/a/a6/Analemma_Earth.png

The associated discussion of shortest day, latest sunrise, and
earliest sunset (which are not the same thing!) is also decent:
https://en.wikipedia.org/wiki/Analemma

Here is some additional discussion, not super-clear, but not too
bad, and at least not wrong:
https://en.wikipedia.org/wiki/Equation_of_time#Major_components_of_the_equation