Spring and orbits

Good vernal equinox, all! I think it’s cool to take a moment to think about what an equinox is (e.g., day and night nearly equal in length), with longer nights before and shorter nights after (in the case of the vernal equinox), because the Earth’s axis of rotation is not perpendicular to the plane of our orbit around the sun. Earth, sun, solar system. It’s good to step back sometimes.


Image from www.astro.virginia.edu


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