This week's harvest moon will be the last supermoon of the year

People watch a supermoon rise above Lisbon, Portugal, on Aug. 30. (Armando Franca/AP)

Armando Franca / Armando Franca

There’s a full moon risin’.

Starting Thursday evening, a brilliant supermoon will be visible in the sky.

Supermoons occur when a full moon reaches perigee, or the nearest point to Earth on its elliptical orbit around our planet.