You’ve probably read about this unprecedented visitor from inter-stellar space. I thought you’d like to see its trajectory through our solar system.

Guy Ottewell's website and weblog
You’ve probably read about this unprecedented visitor from inter-stellar space. I thought you’d like to see its trajectory through our solar system.

This is how the great-circle route from London to Puerto Vallarta should have looked. Beginning,

This picture shows the shortest way from London to Puerto Vallarta.

Commenters, you solved my double riddle, or more than half solved it. Continue reading “Across from Baja”
We’re going away on Thursday for a few sunny days near the Tropic of Cancer. Continue reading “A constellation’s footprint”
We Americans sailed up the Thames to get to a Thanksgiving Day service.

And now for some real meteors (as opposed to Continue reading “Leonids from midnight to dawn”
This piece will start off about astronomy but segue into fair taxation. You may have noticed Continue reading “Algorithms and Sloped Tax”
It’s deep autumn, and maybe we feel like a holiday to Continue reading “The Loss of the Flies”