December solstice coincides with a “Great Conjunction” (aka alignment/syzygy) of Jupiter and Saturn. Tomorrow (December 21st) the two planets will be less than a tenth of a degree apart: so close together that they both can be covered by the tip of your pinky finger at an arm’s length away. Read more →
This October is a moony month (or “moonth” if you’d rather) beginning with an Eager Micro Full Harvest Moon today, and ending with a Full Blue Hunter’s Moon on Halloween.
An Eager Micro Full Harvest Moon. What a moonthful. Why so many names? Read more →
Today marks the September Equinox and the beginning of astronomical fall (for the Northern Hemisphere)!
This is one of two times during the year when the Earth’s axis of rotation is parallel to the direction of its orbit around Sun. Read more →
This week I put together a GitHub project with two notebooks I used to generate clouds for Suntime. If you’re familiar with Python and want to play around with training and deploying neural networks onto your iPhone, check it out! Read more →
Suppose you want to describe to a friend exactly where the Sun is in the sky right now from your location on Earth. How would you go about it? What if you wanted to predict the time and location of sunrise? Or the exact moment when the Moon is fullest? Read more →