Halley's Comet observations

Halley's Comet is a famous periodic comet visible from Earth approximately every 75-76 years, due to its elliptical orbit around the Sun. Its appearances have been recorded for over 2,000 years, dating back to ancient China and Europe. When close to the Sun, it develops a bright tail of gas and dust that points away from the Sun, making it visible to the naked eye. Its predictable return allows astronomers to study its composition, orbit, and changes over time. Halley's Comet is a key example of a short-period comet, providing valuable insights into the solar system’s history and celestial mechanics.