A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2015 Aug 26, 14:26 -0700
It seems like it can't be just a coincidence that Sky & Telescope published an online article about twilight and its variations just last week: Tiptoe into the Twilight. This is one of Bob King's articles. He writes really terrific pieces about various topics in observational astronomy. I find I learn something new in almost every article of his that I read.
And for those interested in Wikipedia issues, it will be interesting if this article is soon cited as a source on twilight definitions.
Conanicut Island USA