September 20, 2017

AstroEvent of the Week: 6.7.09: Can you spot the Penumbral?



This week, I give you what is surely the meekest of all eclipses; a very shallow penumbral eclipse. At about 5:38 Eastern Standard time on the morning of Tuesday, July 7th, the northern edge of the Moon will find itself not quite a quarter submerged in the Earth’s penumbra, the light outer part of the planet’s shadow. The geometry for most of the continental United States is not good, as the Moon will be setting in the brightening dawn twilight. So why should you care to wake up early for an almost non-eclipse? [Read more...]