StarDate Susitna 1-5-20, by Kathleen Fleming

January 9, 2020 |

In this StarDate Susitna, Kathleen Fleming talks about a diminishing red supergiant and ponders how astronomers measure time.

During a visit to the UK, Kathleen enjoyed touring the Royal Greenwich Observatory, seeing the Harrison chronometers, straddling the Prime Meridian of the World, and watching the time ball drop signalling 1 PM.. Then there was a beer at the Mean Time Pub. Photos credit: Kathleen Fleming.