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To join the Flamsteed Astronomy Society, click on this link.

The Flamsteed is an amateur astronomy society at the Royal Observatory and National Maritime Museum in Greenwich, London SE10. It has around 350 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 members of The Federation of Astronomical Societies.The Federation of Astronomical Societies

Sky this Month: September 2014

by Mike Meynell The autumn equinox is on September 23 – the point where the hours of night and day are equal, so we’re looking forward to the skies getting darker again. I’m going to cover the Moon and the planets and then move on to some of the other objects that you can view […]

Viewing the Sun through the 90mm Coronado

At our last Flamsteed committee meeting in May, Nick Phillips proposed that we set up a series of “members only” solar viewing events at the Royal Observatory Greenwich to take advantage of the equipment that we have available and to promote interest in solar observing amongst the Flamsteed membership. We’ve been running public sessions at […]

Solar Observing at the ROG

Report by Andy Sawers As the dawn chorus gave way to the sound of the school run, it still wasn’t at all obvious that we were going to have a good solar viewing day. The clouds weren’t great and the forecast wasn’t much better. Still, perhaps we’d get a couple of hours of showing and […]

Dome E - 26in Thompson

Report by Mike Meynell In truth, the Flamsteed don’t need much of an excuse to organise a trip to Herstmonceux, the second home of the Royal Greenwich Observatory. However, it was a bit of a surprise to find that it had been 6 years since our last visit, back in June 2008. It was the […]

Detached prominence - taken on Blackheath by Tej Dyal

Report by Rupert Smith In celebration of International SUNday we held a solar observing session at our regular Blackheath location on……Saturday! This was due to the better forecast offered on this day, which, despite some cloud from time to time, proved to be the right choice. There was a good turnout of scopes, which as […]

Sunspots 17. 6.12

A special solar observing event will take place on Friday the 19th of September at the Royal Observatory Greenwich. This will provide visitors with an opportunity to see the Sun in many guises from H-Alpha, Calcium-K and normal ‘White’ Light wavelengths through various telescopes. Visiting from the United States will be Stephen Ramsden, Director of […]

Hare & Billet Pub

September 22, Monday 8.00pm Flamsteed Pub Evening at the British Oak, 109 Old Dover Road, Blackheath SE3 8SU.  All are welcome.

Astrofun. Mike taking in the sights over Romney Marsh

Martin and Jane have very kindly offered to run a viewing session from their observatory on Saturday 27 September (with a “weather back-up” night of Sunday 28 September). For the benefit of newer members, Martin’s observatory (a shed, but not as most of us know sheds) is very well equipped including a permanently mounted 14-inch SCT and […]


Flamsteed History of Astronomy Group Meeting. “Longitude and the Victorian Internet” – in this 300th anniversary year of the Longitude Prize, our very own Flamsteed member Bill Connor will be talking about the development of the international telegraph network, the ‘Victorian Internet’, and how it became a powerful tool for surveyors and navigation in the […]

Ian Ridpath

Ian Ridpath is an author, broadcaster and lecturer on astronomy and space with over 40 book titles to his name. He is editor of the Oxford Dictionary of Astronomy and of the last three editions of Norton’s Star Atlas. He is a recent winner of the Astronomical Society of the Pacific’s award for outstanding contributions […]

U.S. astronauts once again will travel to and from the International Space Station from the United States on American spacecraft under groundbreaking contracts NASA announced Tuesday. The agency unveiled its selection of Boeing and SpaceX to transport U.S. crews to and from the space station using their CST-100 and Crew Dragon spacecraft, respectively, with a […]

Over the past few decades, average global temperatures have been on the rise, and this warming is happening two to three times faster in the Arctic. As the region’s summer comes to a close, NASA is hard at work studying how rising temperatures are affecting the Arctic. from NASA

A planet may be causing the star it orbits to act much older than it actually is, according to new data from NASA’s Chandra X-ray Observatory. This discovery shows how a massive planet can affect the behavior of its parent star. from NASA

NASA will make a major announcement today at 4 p.m. EDT regarding the return of human spaceflight launches to the United States. The agency will make the announcement during a news conference from NASA’s Kennedy Space Center in Florida. The event will be broadcast live on NASA Television and the agency’s website. from NASA

NASA has awarded a sole source contract modification to Exelis, Inc., Geospatial Systems, of Fort Wayne, Indiana, for the Cross-track Infrared Sounder (CrIS) Instrument for flight on the Joint Polar Satellite System-2 (JPSS-2) mission. from NASA

17th Sep, 2014

Milky Way above Atacama Salt Lagoon


16th Sep, 2014

62 Kilometers above Comet Churyumov Gerasimenko


15th Sep, 2014

M27: The Dumbbell Nebula


14th Sep, 2014

Median Mashup: Hubble s Top 100


13th Sep, 2014

Supernova Remnant Puppis A


12th Sep, 2014

Zodiacal Light before Dawn


11th Sep, 2014

Laniakea: Our Home Supercluster of Galaxies


10th Sep, 2014

A special solar observing event will take place on Friday the 19th of September at the Royal Observatory Greenwich. This will provide visitors with an opportunity to see the Sun in many guises from H-Alpha, Calcium-K and normal ‘White’ Light wavelengths through various telescopes. Visiting from the United States will be Stephen Ramsden, Director of the Charlie Bates Project. Stephen is extremely knowledgeable and will be providing a talk at the event. The talk will explain the many features of the Sun, explain how to observe and capture it and also explain a little of what the outreach project is all about. Limited tickets for the talk will be available on the day. In addition to Stephen, there will be Flamsteed members on hand to explain the Suns many incredible features. Also in attendance will be the Flamsteed committee member Rupert Smith and well known solar imaging guru Gary Palmer, both fresh from the recent successful record attempt for the world’s largest solar image. This was carried out at another former home of the ROG, the Herstmonceux Science Centre on September 8th. They will be on hand to answer any questions you may have on solar imaging. In the event of wet weather spoiling our plans for observing, we are hoping to have a backup location within the museum where we can continue with the event in exactly the same way, but without physical viewing. The event is being run by the Flamsteed Astronomy Society in collaboration with the Charlie Bates Solar Astronomy Project, the world’s largest solar outreach charity. It will run from 1pm until 4.45pm. See http://flamsteed.info/event/solar-outreach-event/ for location details.

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10th Sep, 2014

An Aurora Cupcake with a Milky Way Topping


9th Sep, 2014

Full Harvest Moon: How to Photograph Tonight's 'Supermoon'