Upcoming Events

  1. Romney Observing Evening – Wednesday 23 April

    April 23 @ 9:30 pm - 11:30 pm
  2. Flamsteed Pub Evening

    April 28 @ 8:00 pm - 11:00 pm

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Short summaries on subjects of topical interest to the Society, and links to references for more information

Huygens,  Halley,  and Harrison  ( and Neptune,  and Tycho ) by Mike Dryland

When is a planet not a planet? by Eddie Yeadon

The Bureau des Longitudes in Paris by Eddie Yeadon

Today’s Big Reflecting Telescopes by Mike Dryland

Relative Values — two other significant anniversaries in 2005 by Eddie Yeadon.  Transcribed from f@nmm, October 2005

“The Other Six” — The World’s Greatest Refractors by Mike Dryland

Did you know William Herschel, discoverer of the planet Uranus, was a fine musician and composer?  — CD review from Martin Male

The post of Astronomer Royal is 330 years old   — March 4, 1675

The Craig Telescope on Wandsworth Common by Greg Smye-Rumsby

Charles Parsons & Turbinia — a link between maritime history and astronomy by Eddie Yeadon

James Bradley and the Dragon’s Head—280 years ago James Bradley (later third Astronomer Royal) began a series of observations that was to change astronomy by Mike Dryland

John ‘Longitude’ Harrison is buried in the graveyard of Saint-John-at-Hampstead

Three Astronomers Royal are buried at St. Margaret’s Lee, just 30 minutes’ walk from the ROG

If you could stand on Mars could you witness a Transit of Earth?  How long would you have to wait?

Portraits of John Flamsteed and his assistant Thomas Weston are to be seen on the ceiling of the Painted Hall at Greenwich.  Also, Tycho and Copernicus…

Why doesn’t a GPS receiver held over the Prime Longitude at Greenwich show longitude 0˚ 00΄ 00˝ ?

William Herschel (1738 – 1822) If Sir William Herschel is not the patron saint of amateur astronomers, he should be…

The Transit of Venus In the late 17th/early 18th Century, measuring the size of the solar system accurately was one of the great challenges for science…

Eddie Yeadon’s Transit article from ‘Horizons’

The Royal Greenwich Observatory Herstmonceux By the end of the 19th Century, Greenwich was rapidly becoming unsuitable for astronomy… RGO (pdf)

The Gregorian Calendar (pdf) September 2002 was the 250th anniversary of Britain’s adoption of the Gregorian Calendar…