University of Edinburgh

BSL Astronomy Glossary - Gemini - definition

Definition: A constellation is a group of stars and Gemini is a constellation that looks a little bit like two people standing next to each other. This group of stars, also known as the twins, can be found in the night sky by identifying the three stars that make up Orion's belt, from there moving up to the bright star, Betelgeuse, in Orion's armpit and then looking to the left. The imaginary lines, shown in the video, help us to understand why people, long ago, thought this constellation resembles twins.