+----------------+----------------------------------+------------------------------------+ | Season System | Defined By | Main Advantage | +----------------+----------------------------------+------------------------------------+ | Astronomical | Earth's tilt and orbit (Solstice | Tracks precise planetary alignment | | | and Equinox) | | +----------------+----------------------------------+------------------------------------+ | Meteorological | Annual temperature cycles and the| Perfect for climate tracking and | | | civil calendar | monthly statistics | +----------------+----------------------------------+------------------------------------+ 1. The Astronomical System

For everyday life, planning, and understanding when it will actually get hot or cold, the Meteorological calendar is more useful . For understanding the Earth’s relationship with the sun, celebrating ancient festivals, or explaining why the North Pole has 24 hours of daylight, the Astronomical calendar is essential .