Analemma (/-/ Rampant Speculation /-/)

by dogcow , Hiding from Bob, in the vent core., Friday, April 28, 2017, 13:29 (2553 days ago) @ ZackDark

Does the earth rotate in 1 hr when viewed from the moon?

You know, that always bothered me about our concept of "day". The Earth isn't standing still while it rotates around itself, it also rotates around the Sun. So is a day a complete revolution around Earth's axis, slightly less or slightly more? Also, Earth's orbit isn't a perfect circle, it's rather elliptical, so different positions of such orbit would mean different orbit speeds which would again change how long it takes for the Sun to appear in the same place in the sky it did yesterday EVERY SINGLE DAY. So, what the heck?!

Analemma!

In tiny pink post-it notes on my office wall... yes, I'm a nerd.