General presentation

Gemini is one of the most recognizable zodiacal constellations in the northern hemisphere's winter sky. It is visible mainly in winter and early spring, when it peaks high in the night sky. This constellation is easy to spot because it contains two bright stars close together, giving the impression of two parallel figures in the sky. Thanks to its position on the ecliptic, Gemini is crossed by the Sun once a year and serves as an important reference in astronomy and observation of the sky.

Shape of the Gemini constellation

The constellation of Gemini has a very characteristic shape composed of two parallel lines of stars, representing the twins. These two columns seem to descend side by side in the sky. They are dominated by two very bright stars: Castor and Pollux, which mark the heads of both characters.

Stars of the Gemini constellation