Sir Edmond Halley

1910 Halley's Comet



You can now buy the recently released book, Fall of a Thousand Suns: How Near Misses and Comet Impacts affected the Religious Beliefs of our Ancestors. It is available through iBooks and Amazon.


This website simply lists information about Halley's Comet. The book, however, thoroughly investigates how ancient impacts and near misses changed religious beliefs around the world. The book is the result of years of research and countless interviews with astrophysicists, scientists and religious scholars. After reading it, you won't look at comets, meteor showers or religion in the same way.


Biography of Edmond Halley

Edmond Halley born on November 8, 1656. His father was Edmond Halley Sr., a wealthy 17th century soapmaker in London. As a child, Edmond showed an intense interest in mathematic and astronomy. In 1673, at the age of seventeen, he attended the Queen's College, Oxford. As an undergrad, Halley wrote and published several astronomical papers.


Halley's Comet 1910

Edmond Halley (1687)

Credit: Painting by Thomas Murray

In 1676, he visited Saint Helena in the South Pacific. The clear skies, void of pollution, made observation of the heavens ideal. Halley left Oxford and established an observatory on the island with the goal of charting the stars in the southern hemisphere. While on Saint Helena, Edmond Halley believed the transit of Venus could be used to determine the size of the solar system.


In May of 1678, he returned to England. A year later, he published his observations on 341 new southern stars. Halley received his M.A. degree from Oxford and for his contributions was already considered a minor astronomical circles, at least. In 1686, he published more information gleaned from his Saint Helena expedition. They had nothing to do with stars, but instead with the monsoons, trade winds, solar heating and barometric pressure.


In 1682, Edmond Halley married Mary Tooke. The couple resided in Islington and had three children. Halley continued, of course, to be obsessed with astronomy. He spent most of his time observing the Moon, but was also interested in gravity.


In August of 1684, he traveled to Cambridge to meet with Isaac Newton and discuss Kepler's laws on planetary motion. The publication of Newton's Philosophiæ Naturalis Principia Mathematica was financed by Halley in 1687. Philosophiæ Naturalis Principia Mathematica contained the then revolutionary idea that comets obrited the Sun as did planets.


In 1705, Edmond Halley published Synopsis Astronomia Cometicae. The book included his calculations and belief that comets visible to the naked eye in 1456, 1531, 1607 and 1682 were all the same comet. He predicted this comet would return in early 1759. He died in 1742, at age 85, so he sadly didn't live to see whether or not his prediction came true. When the comet returned on Christmas Eve,1758, it became popularly known as Comet Halley or Halley's Comet. It was later given a formal designation of 1P / Halley, meaning it was the "1"st comet to have its "P"eriodic orbit (the number of years it took to orbit the Sun) determined. It is perhaps, Edmond Halley's greatest legacy.


As of March 17, 2013, only 280 comets have their orbital “P”eriod definitively determined.



Other Contributions

Halley even contributed to many other sciences including archeoastronomy and diving.


Long before Jacque Cousteau and SCUBA, Halley conceived of a way to breathe while deep underwater. The device, called a "diving bell", used weighted barrels of air sent down from the surface to breathe. in 1691, he and five others demonstrated the device by diving 60 feet to the bottom of the River Thames and remaining there for an hour and a half. The diving bell was never used commercially as it was too bulky, but Halley continued to improve the device.