“I see the bad moon arising. I see trouble on the way.” -Creedence Clearwater Revival
Every now and then I will read a scientific explanation that doesn’t blow past my head at warp speed. I may not know what warp speed is, but I must have been paying some attention during Astronomy 101. I actually have a basic understanding of the phenomenon, known as the Supermoon, that will be playing out in tonight’s sky.
It’s actually pretty simple. Because the lunar orbit is an ellipse rather than a circle, its distance from any one vantage changes over time. In this …