Flamsteed Astronomy Society

Seven pinhole cameras spent a fortnight on the roof of the Queen’s House, recording the Sun’s daily tracks over Greenwich Park. ☀️ See the solargraphs and read how Flamsteed’s Yvonne Jacobs and Frederik Botha took the project from a fence post to a rooftop. flamsteed.info/post/solargra…

📝 Our Halloween observing report is up! Dew, doubles and a hair dryer: Saturn, Uranus, Neptune, the Double-Double and the Witch's Broom, with 120–150 of you on Blackheath 🎃🔭 flamsteed.info/post/dew-doub… #Stargazing #Blackheath

🎃 CONFIRMED ON: Halloween Stargazing on Blackheath tonight, 7–9pm! 🔭 Saturn & bright stars, plus more if the sky allows. Come early, as mist is likely later. Free, all welcome 👻 flamsteed.info/event-details… #Stargazing #Halloween

🎃 Halloween Stargazing on Blackheath tonight (Sat 31 Oct) is PROVISIONALLY ON, weather permitting 🔭 Forecasts are split, so if we're on it'll be a shorter session from 7 to 9.30pm. Final call by 3pm! flamsteed.info/event-details… #Blackheath #Stargazing #Halloween

🌙 Water on the Moon? Pranjal Garg explored the discoveries that transformed our understanding of lunar water, its origins and how it could support future astronauts. Read our meeting report: flamsteed.info/post/lunar-hy…

🎃 Halloween Stargazing on Blackheath! Join us Sat 31 Oct from 7pm for Saturn, Uranus, Neptune, galaxies and Algol the Demon Star 👹 Free, all welcome, and costumes are optional! Weather back-up is Sun 1 Nov. 
flamsteed.info/event-details… 
#Stargazing #Halloween #Blackheath #Astronomy

200+ visitors joined us on Blackheath last night. More cloud than forecast, but Saturn’s rings and moons rewarded those who stayed! Thanks to our volunteers and everyone who came along. Report and photos: flamsteed.info/post/saturn-b…

🔭 CONFIRMED ON tonight, Sat 17 October! Stargazing on Blackheath, 7.30–11pm, north of Talbot Place. See the Moon, Saturn, galaxies and star clusters. Free, all welcome! Bring equipment if you have it. Wrap up warmly! flamsteed.info/event-details…

🔭 Stargazing on Blackheath! Sat 17 Oct, 7.30–11pm Weather back-up: Sun 18 Oct 📍 North of Talbot Place Free, all welcome! See the Moon, Saturn and more. Weather permitting. Tap “Add Reminder” for go/no-go updates: flamsteed.info/event-details…

Could we be living in a simulation? Professor Catherine Heymans explored the question at last night’s Flamsteed lecture, following Yvonne Jacobs’ eclipse-chasing adventures. Read our report: flamsteed.info/post/how-to-d… #Astronomy #Flamsteed

From Seestar and Dwarf to Vespera and Celestron Origin, our Smart Telescope Masterclass explored what these scopes can do, with owners sharing their experiences. Thanks to Clive for the report: flamsteed.info/post/explorin…

🔭 More than 200 attendees joined us on Blackheath on Sunday 4 October, including students from the UCL Space Society. Saturn was the main visual highlight, with plenty of enthusiastic reactions at the eyepieces. Albireo and the Double-Double were among the other visual targets, while our smart scopes captured galaxies M31, M81, M82 and NGC 891, plus the Dumbbell Nebula. Thank you to everyone who came along, and to our volunteers for sharing the views and answering questions throughout the evening. Next session: Saturday 17 October, with Sunday 18 October as the weather back-up. Free and all welcome! Check flamsteed.info for details and confirmation before travelling. #Blackheath #Stargazing #Astronomy #London #Flamsteed

🔭 CONFIRMED ON tonight! Join us on Blackheath, Sunday 4 October, 7.30–11pm, north of Talbot Place. See Saturn, Andromeda, star clusters and nebulae through our telescopes. Free, all welcome. Dress warmly! flamsteed.info #Blackheath #Astronomy

🔭 Stargazing on Blackheath! Rescheduled to Sunday 4 October, 7.30pm, north of Talbot Place. See Saturn, Andromeda and more through our telescopes. Free, all welcome! Weather permitting. Final confirmation Sunday morning: flamsteed.info #Blackheath #Astronomy

An entertaining hunt for axion dark matter with Prof Ed Daw, plus our AGM and a thank you to Bobby Manoo after five years as chair. Read Amy’s excellent report: flamsteed.info/post/the-hunt…

Nearly 20 telescopes, 70–80 visitors and a supernova! A superb start to our Blackheath observing season, with the Moon, Saturn and two curious foxes. Thanks to all our volunteers! Report and photos: flamsteed.info/post/a-supern… #Blackheath #Astronomy

Nearly 20 telescopes and 70-80 visitors: a superb start to our Blackheath season! Moon, Saturn, star clusters, nebulae and a supernova, plus an ISS pass and two curious foxes. Thanks to all our volunteers and visitors! Next: 3 October, weather back-up 4 October.

🔭 Blackheath observing is ON tonight, Sunday 20 September, 8-11pm! Some volunteers will be there from 7pm for the Moon. Join us north of Talbot Place for Saturn, star clusters, nebulae and galaxies. Dress warmly! flamsteed.info/event-details…

🔭 BLACKHEATH OBSERVING UPDATE Our event planned for Saturday 19 September has been moved to Sunday 20 September. Sunday offers the better forecast, but the event remains weather-dependent. We’ll confirm on Sunday morning. flamsteed.info/event-details…

Our final solar viewing session of 2026 brought around 250 visitors to the Royal Observatory Greenwich - and rounded off a record-breaking season. Many thanks to Richard Summerfield for a very entertaining report on the day! flamsteed.info/post/the-fas-…