@Reginaminted 4 June 2021 more from that month

During an annular eclipse, the dark inner shadow of the Moon (the umbra) never reaches Earth. Astronomers, however, call the virtual extension of that shadow the antumbra. If you’re beneath the antumbra, you will see annularity. The Moon also has a lighter, outer shadow called the penumbra. Anyone under the penumbra will witness a partial eclipse.