![halleys comet halleys comet](https://www.pilotonline.com/resizer/ptOKZ5poNmql7zC2m_N9knt9eSc=/1200x705/top/arc-anglerfish-arc2-prod-tronc.s3.amazonaws.com/public/4LHAEWROSVGRLM2VPOGNHNFMO4.jpg)
Halley’s closest approach to Earth took place on April 10, 837, at a distance of only 0.04 astronomical units (AU 6 million km ). However, the generally accepted date for its earliest recorded appearance, which was witnessed by Chinese astronomers, was in 240 bce. Some have speculated that a comet observed in Greece between 467 and 466 bce may have been Halley. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!Įarlier passages of Halley’s Comet were later calculated and checked against historical records of comet sightings.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.
Halleys comet how to#
![halleys comet halleys comet](https://images.lifestyleasia.com/wp-content/uploads/sites/3/2022/07/31232942/panpuri-wellness-806x413.jpeg)
Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.