Author Archives: Bob King

About Bob King

Amateur astronomer since childhood and long-time member of the American Association of Variable Star Observers (AAVSO), Bob King also teaches community education astronomy. The universe invites us on an adventure every single night. All we need do is look up.

Proof you can see Earth's shadow even from a big city

Earth’s Shadow Creeps Up on Us Every Night

The next time you're out watching a sunset, tturn around and relish the mighty shadow of Earth looming just behind your back. Here's a riddle. What sets when the Sun rises and rises when the Sun sets? If you guessed Earth's shadow, give yourself a pat on the back. Strangely, it might be the...

Faculae along solar limb on July 18, 2014

Blank Sun? Faculae to the Rescue!

Fascinating faculae provide a way for anyone with a small telescope to track the ups and downs of the solar cycle — even when there are no sunspots. Sunspots get all the press. Last week the Web hummed with articles about a spotless Sun, the first time since August 2011 our star wore a...