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The Flamsteed is an amateur astronomy society at the Royal Observatory and National Maritime Museum in Greenwich, London SE10. It has around 400 members who represent the full range of interests and experience in astronomy. Many are beginners. It is named after the first Astronomer Royal, John Flamsteed.

The Society was founded in 1999, and is part of the membership organisation of Royal Museums Greenwich.

Our lecture meetings are held once a month between September/October and May/June, usually on a Monday evening, in the lecture theatre of the National Maritime Museum, or in the Peter Harrison Planetarium at the Royal Observatory Greenwich (ROG). The Society regularly holds observing evenings using members’ own telescopes.  In addition the Society stages viewing sessions with the ROG’s Great Equatorial Telescope, the largest of its kind in the UK, and seventh largest in the world.

We are an affiliated society of the British Astronomical Association and members of The Federation of Astronomical Societies.

A short review of what to see in the night sky in May 2020: Light phases at sunrise and sunset Sky conditions during lockdown Starlink comments Messier 3 – Globular Cluster Markarian’s Chain Mercury Eta Aquarids meteor shower “Supermoon” Presented by Mike Meynell

A short review of what to see in the night sky in April 2020: Comet C/2019 Y4 (ATLAS) Lyrid Meteor Shower Venus and the Crescent Moon Phases of Venus Also, a brief review of the best astronomy planetarium apps.

Agnes Mary Clerke was born in Skibbereen in Co Cork in and grew up in the midst of the horrific Irish Famine.  Her mother Catherine was one of the talented and wealthy family of the Deasy’s and her father John Clerke was a talented amateur astronomer and general scientist who ran the local bank.  She […]

In the first of our History of Astronomy sessions for this season, we were presented with a talk by Bill Barton. Bill is a founding member of the Society of the History of Astronomy and the Deputy Director of the British Astronomical Association Historical Section. He is also a member of a number of other […]

The weather in the UK is notoriously difficult to predict. However, amateur astronomers can normally predict, years in advance, when we can expect poor weather and cloudy skies. Those conditions, almost without fail, occur on the day of major astronomical events! Fortunately, the evening of Tuesday 16th July 2019 bucked the trend. We were treated […]

Earth and Moon

The Flamsteed Astronomy Society hosts a number of lectures throughout the year on a wide range of topics relating to Astronomy. Our presenters come from varied backgrounds, many are professors who are engaged in their own areas of research and others work professionally in the space industry. Many of our Members are well versed in […]

Prof Hugh Lewis

The DAMAGE computer model predicts the space debris population will grow exponentially despite widespread implementation of mitigation measures, with a high concentration of space debris developing near an altitude of 1,400km. These findings indicate that our space activity is unsustainable and that new management policies are needed. Hugh Lewis is a Professor of Astronautics in […]

Celestial sphere

The Flamsteed Astronomy Society hosts a number of lectures throughout the year on a wide range of topics relating to Astronomy. Our presenters come from varied backgrounds, many are professors who are engaged in their own areas of research and others work professionally in the space industry. Many of our Members are well versed in […]

Earth Magnetic Field

The Flamsteed Astronomy Society hosts a number of lectures throughout the year on a wide range of topics relating to Astronomy. Our presenters come from varied backgrounds, many are professors who are engaged in their own areas of research and others work professionally in the space industry. Many of our Members are well versed in […]

Join us in our Zoom social evening in the Flamsteed virtual pub, ‘The Edmond Halley’! (Halley always was a more convivial sort of chap than John Flamsteed, to be honest.) To add to the atmosphere of the pub theme, please have a drink in hand during the event. This does not have to be an […]

NASA Administrator Jim Bridenstine, and U.S. Sen. Ted Cruz and U.S. Rep. Brian Babin of Texas will hold a news conference at 1 p.m. CDT Sunday, May 31, at Space Center Houston, the official visitor center of NASA’s Johnson Space Center in Houston, to discuss the successful docking of the SpaceX Crew Dragon spacecraft carrying […]

For the first time in history, NASA astronauts have launched from American soil in a commercially built and operated American crew spacecraft on its way to the International Space Station. from NASA

The NASA Advisory Council (NAC) virtual public meeting originally scheduled for Tuesday, June 2, has been postponed until further notice. from NASA

After receiving more than 100 applications, NASA’s Jet Propulsion Laboratory (JPL) in Southern California has selected eight U.S. manufacturers to make a new ventilator tailored for coronavirus (COVID-19) patients. from NASA

NASA will provide live coverage of prelaunch and launch activities for the agency’s SpaceX Demo-2 test flight, carrying NASA astronauts Robert Behnken and Douglas Hurley to the International Space Station. from NASA

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