Lalande's Seasons

Lalande's Seasons is a concept introduced by the French astronomer Jérôme Lalande in the 18th century, highlighting how seasons on Earth are influenced by the tilt of the planet's axis and its orbit around the Sun. Unlike fixed seasons, Lalande noted that the duration and intensity of seasons vary over long periods due to changes in Earth's axial tilt and precession. This means that, over thousands of years, the way seasons are experienced—such as temperature and weather patterns—can shift, affecting climate and ecosystem dynamics. Lalande's observations contribute to our understanding of long-term climate variations.