Happy Perihelion Day! Today the Earth was closer to the Sun than it will be on any other day of its orbit. Northern hemisphere winters are just a scoche less cold, and northern hemisphere summers just a scoche less warm, than those of the southern hemisphere, as a consequence of this slight (.02 eccentricity) irregularity of this elliptical orbit we're all on.
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Happy Perihelion Day to you too, handsome!
Einstein Cross, huh. Learn something new every day!
Thank you, my friend.