Venus is at its brightest in the morning sky. It’s been appearing in Continue reading “A horseshoe of Earths”
Category: geometry
Past Earths revisited, and the software that finds them
Here is the sky this Wednesday evening –
Continue reading “Past Earths revisited, and the software that finds them”
Venus hovers near Spica
Watch out for a new product, to be called the “Zodiacal Wavy Chart.” This is a snippet of it:
The speed of sound and the speed of day
Earth is a spinning ball, we are insects Continue reading “The speed of sound and the speed of day”
Kepler’s Equation
What is it? That was the last question in my Continue reading “Kepler’s Equation”
Flight to longer days
This picture shows the shortest way from London to Puerto Vallarta.
The Sun on the equator
The equinox will strike, like a bell, on Friday September 22. It heralds Continue reading “The Sun on the equator”
Where Earth is heading From
If Earth is a car, and we now look out of the rear window, Continue reading “Where Earth is heading From”
Boxing Day
Whenever I have to carry a cardboard box, Continue reading “Boxing Day”
Leonids and the lingering Moon
Here is a diagram I made for Continue reading “Leonids and the lingering Moon”