This is the personal website of Jan Marthedal Rasmussen.

The latest update to my micropost feed is the following:

  • Today marks the September equinox (yesterday if you're west of UTC), the moment when the Sun crosses the celestial equator moving southward, resulting in nearly equal hours of day and night across the globe and marking the start of astronomical autumn in the Northern Hemisphere janmr.com/posts/equinoxes-and-sols…

    September Equinox Distribution by Day and Hour (1900-2100)

My five latest posts are: