Brighton Astro is a place for cosmic enthusiasts from all walks of life to meet up, talk about the universe and gaze at the stars. Every month we host a FREE talk with drinks and nibbles and the opportunity to go out with our telescopes afterwards – weather permitting!
We're open to everyone, from beginners to experts. So why not join us and look to the stars?
Once a month (usually the final Tuesday) we gather at 68 Middle Street, Brighton for a presentation on an aspect of the universe. Our speakers range from experts in the field to members of the group; you don't need to know a lot when you come, but you'll definitely leave knowing more!
We're always on the lookout for our next speaker, so if you have something to share we'd love to hear from you.
After the meetings you'll find us on the seafront with our telescopes, or sheltering from the elements in the pub. Brighton Astro is a great place to meet new people, have some fun and learn together.
Tuesday 25th September 2018
Arrive from 7pm for a 7:30pm start
68 Middle Street, Brighton, BN1 1AL
Are we alone in the Universe? Is our planet so unique that we only find the conditions for the development of intelligent life here on Earth? During this talk Francesco will explain what makes the Earth so special and how its physical properties led to the development of life. He’ll then ponder how likely it is we will find similar conditions elsewhere in space.
Francesco Andreoli is a Professional technical translator and interpreter Born in San Giovanni Lupatoto, small town near Verona, Italy. Grew up in Milan. Moved to London in 1974. Moved to Lewes in 2010, to Brighton 2015. Likes photography and Videoing. Interested in Sciences, Astronomy, Evolution of Man, Science-Fiction, Bible studies, All combining to produce the Speech about the Universe, Life and Man. Tendentially skeptical about everything.
If you would like to come along, please sign-up for free via our meetup page.
If you sign up via meetup but can no longer attend, please update your status to say that you are no longer attending so that someone on the waiting list gets a place.
Please only come along if you've signed up, as we're limited on space so won't be able to fit anyone else in.
Are you under 18? Please see our juniors section.Register on Meetup.com
Tuesday 28th August 2018
Casting Light on Light
Pollution from lighting has a negative impact on observational astronomy and this impact may well get considerably worse, without opposition. However, it is not just astronomy that it is affected. This presentation will examine the effects and side-effects of lighting.
Paul Marchant is a Chartered Statistician (CStat) of the Royal Statistical Society (RSS) with a PhD in astrophysics. He has served on the Council of the RSS and chaired the Leeds and Bradford RSS Local Group. Since retirement, he holds visiting fellowships at both Leeds Beckett University and the University of Leeds. He was involved in the Loss of the Night Network (LoNNe), an initiative of European Cooperation in Science and Technology (COST) and is an affiliate of the Consortium for Dark Sky Studies, based at the University of Utah. He takes an interest in evidence-based policy generally and sees good statistics as essential in separating ‘the wheat from the chaff’. He has submitted evidence to Select Committee Inquiries into both Research Integrity and Light Pollution … and there is a link! He is sceptical of claims of significant safety benefits of brighter, whiter public lighting, see Marchant P (2017) ‘Why Lighting Claims Might Well Be Wrong’, International Journal of Sustainable Lighting 19, 69-74
Tuesday 31st July 2018
Dimitrios Theodorakis, Sussex University
A mini tour of the outer solar system
A mini tour of the outer solar system - current missions/research on the gas giants and then my area of research which is objects past Neptune such as Pluto, Sedna and maybe Planet 9
Tuesday 26th June 2018
Professor Kathy Romer, Sussex University
Clusters of galaxies - the shy giants of the universe
Clusters of Galaxies, when viewed with telescopes on Earth and in space, are amongst the most beautiful objects in the night sky. Theirs is not a benign beauty: they play host to the most violent and energetic explosions in the present-day Universe. This lecture will review the historical contributions of that studies of clusters have made to the theory of Big Bang Cosmology, and also describe how current research into clusters at Sussex is uncovering the mysteries of dark matter, dark energy and black holes.
Tuesday 29th May 2018
Astronomy author, writer and speaker
How To Weigh A Universe
The universe is a wondrous place filled with extraordinary objects. Just as extraordinary is our ability to understand them. In this talk – packed full of stunning visuals and the latest scientific thinking – you'll hear how we're able to put the universe on the scales. To work out what things in space weigh without ever leaving the Earth. We'll meet some of the most colourful and eccentric astronomers in history and marvel at just how much of space we're yet to understand.
Colin is an astronomy speaker and author who has talked to over a third of a million people about the universe, ranging from schools and the public to conferences and businesses.
His seven books have sold more than 100,000 copies worldwide and he's written over 150 popular science articles for publications including The Guardian, New Scientist, BBC Focus and the European Space Agency.
Tuesday 24th April 2018
Irv Bartlett, and Dark Skies Dan from the South Downs National Park
An Introduction to Astrophotography and Telescopes
A double-header talk, first we will have an introduction to astrophotography from local photographer and Brighton Astro regular Irv Bartlett, followed by an introduction to telescopes from Dark Skies Dan from the South Downs National Park
Tuesday 27th March 2018
Cassini's mission to Saturn
A look at the history, science and findings of the Cassini missions since it's launch in 1997 - including stunning images captured across 2 decades of discovery...
Cassini began the first in-depth, up-close study of Saturn and its system of rings and moons in 2004. After its four-year prime mission, it’s tour was extended twice.
During the two-year Cassini Equinox Mission, the spacecraft made 60 additional orbits of Saturn, 26 flybys of Titan, seven of Enceladus, and one each of Dione, Rhea and Helene.
And in 2010, the spacecraft began a second, seven-year-long, extended mission called the Cassini Solstice Mission, concluding with 22 deep dives between Saturn's cloud tops and innermost ring before it plunged into the giant planet's atmosphere.
Tuesday 27th February 2018
Ciaran Fairhurst, Sussex University
What keeps astronomers awake at night
Astronomy is ridiculously ambitious: we are attempting to chart the history of the entire universe - and everything in it - from the Big Bang to the present day. So far we've done a pretty good job; we know why eclipses happen, how planets form and how stars die. We know about planets around other stars, distant galaxies and even how galaxies clump together to form structures inadequately described as humongous. What I want to do is talk about the gaps, the things we almost know but not quite. I'll try to show you why they are so tough, and how we're attacking them. We call them "open questions" but really they're what have kept astronomers observing and theorising for millennia: they're what keeps us up at night.
Friday 16th February 2018
Dr Francisco Diego, UCL
Think Universe! (part of the Brighton Science festival)
Mysterious creation myths still influence our culture, but what does science say about the origins of the universe? Join astronomer Dr Francisco Diego for a fascinating talk on the relevance of science to modern culture.
Tuesday 30th January 2018
José Vieira, Sussex University
Cosmology is perhaps best described as "the study of the Universe as a whole". What does the Universe look like at the largest scales? How did it come to be? How will it evolve in the distant future? These are all important questions which cosmology deals with.
In this talk we will briefly review the history of cosmology - from when it was "born" of Einstein's theory of relativity until recent years, when remarkable observational successes have allowed it to mature into a fully-fledged scientific field.
Tuesday 12th December 2017
Brighton Astro's xmas (pub) quiz!
Come and join us for a Brighton Astro xmas space quiz!
We have space (sorry) for 50 people. 8 teams of 6. Don't worry if you don't know people or have a team ready, we'll be putting together teams on the night, so just come along...
A bit of space knowledge may help but not essential, we'll try to make sure the teams are evenly matched.
Tuesday 28th November 2017
Triton - Neptune's major moon
Join us to hear all about Triton, the largest moon of Neptune. Nick will tell us about its origins, nitrogen geysers, and its retrograde orbit.
Triton's recent occultation of a star gave astronomers the first opportunity since the 1990s to detect atmospheric changes.
Tuesday 31st October 2017
Moons of the solar system
"Moons...they're just boring lumps of rock aren't they?"
Our Solar system moons vary hugely and in total there are...well come to our October meet and find out!
Tuesday 26th September 2017
The Observatory Science Centre, Herstmonceux
Twenty(ish) ways the universe wants to kill you
The universe is not your friend! You might think that the universe is a nice stable place that has allowed life to develop but we're a freak, a long shot, a straight flush in the poker hand of life and the cosmos stacks the cards against you and we're never more than a statistic away from annihilation.
In this light hearted look at our own extinction Jarvis Brand discusses a range of ways from the small to the large in which the end could come from rogue asteroids and greenhouse effects to the big rip and membrane collision. How dangerous are they and where can we stand at a safe distance to watch the fireworks?
Jarvis Brand (B.Sc. (hons), M.Sc., PGCE) studied Astrophysics and Physics at the University of Birmingham where he was a research associate. He now runs the planetarium for the Observatory Science Centre at Herstmonceux.
Tuesday 29th August 2017
Dr Stephen Wilkins, Sussex University
An introduction to Relativity
Einstein's special and general theories of relativity are physical theories regarding the relationship between space and time in addition to being the current description of gravity in modern physics. Since their development in the early 20th century they been subject to intense scrutiny and empirical validation, with the most recent example being the discovery of gravitational waves. Relativity has also drawn significant attention outside the physical sciences because of some of the seemingly counter-intuitive implications such as time dilation and length contraction, concepts which have become science fiction staples. In this talk I'll attempt to provide an accessible introduction to relativity and its implications.
Tuesday 25th July 2017
The Voyager Missions
40 years ago, two spacecraft were sent on a journey, not of one lifetime but thousands of lifetimes. Meet the Voyagers and marvel at their missions into the unknown!
Tuesday 27th June 2017
Daniel Moinar, Sussex University
What would the sky look like through eyeballs the size of tennis courts? What could we see if we had radio-wave vision? Come and find out at our next Brighton Astro meet up on Tuesday 27th June where PhD student Dániel Molnár will be talking about the giant machines that allow us to do this, and what we learn from them. In his PhD, he studies all different types of galaxies, from "average" ones to violent and intense so-called active galaxies.
Tuesday 30th May 2017
Ciaran Fairhurst, Sussex University
Detecting the most distant galaxies
One of the salient questions in Astronomy is "How far away is it?". As our equipment both literally and philosophically has improved, this question has driven our view of the universe to completely change. From a flat disc in the centre of the universe below a static, unchanging heavens to the modern day view: that the universe is an ever changing mess in which we just happen to be along for the ride. During this talk I'll try to talk about the how measuring distances is done, describe what kinds of celestial objects hold the records for farthest object, and briefly outline how to use a telescope as a time machine.
Tuesday 25th April 2017
Group astrophotography show-and-tell
Tuesday 28th March 2017
Monday 27th February 2017
An introduction to Astrophotography
Gordon is the locally based founder and editor of cameralabs.com, the site to visit for the most comprehensive camera reviews and discussions. He'll be taking us through the popular subject of astro-photography, sharing his vast knowledge of photography and technical know-how to help us all achieve those stunning shots of the night skies that we love. We doubt you'll find anybody that knows a camera inside and out better than Gordon and we are excited to have such an authority address the group. There'll be something for all levels and it's sure to garner wide interest so make sure you arrive early to 68 Middle Street and take this rare chance to pick the brains of a real expert.
Tuesday 31st January 2017
Tuesday 29th November 2016
Tuesday 25th October 2016
Tuesday 27th September 2016
The big bang
Tuesday 30th August 2016
Tuesday 26th July 2016
The night sky - beyond our solar system
Monday 20th June 2016
Equinoxes and Solstices
Tuesday 24th May 2016
The night sky - our solar system
What's astronomy without stargazing? Sign up to our email list below to find out when and where we're out with our telescopes. If you've never seen the moon up close, been awe-struck by the rings of Saturn or wondered at the Milky Way then this opportunity is not to be missed.
Stargazing is always at the mercy of the weather and meet ups can be at short notice, so keep an eye on our social media feeds and the sky for updates!
Sign up here to join our mailing list. You'll receive emails about upcoming events and stargazing sessions. You can unsubscribe at any time, and we promise never to spam you!
We also have a community email group where we share space news and links, if you’d like to join the list please drop us an email at the address below.
Our meetings are held on the last Tuesday of the month at:
68 Middle Street, Brighton, BN1 1AL
All children under 16 years old must be accompanied by an adult.
Junior members between the ages of 16-18 are asked to obtain consent from their guardians and make themselves known to us when they arrive, so that we can get emergency contact details.
Brighton Astro is an open event that may have alcohol present for members over the age of 18.
68 Middle Street is fully accessible by wheelchair. If you do have any specific needs regarding accessibility or health please contact us and we'll do everything we can to make sure they are accommodated.Back to top
Here are some photos from our meetups and stargazing trips. Click on any picture to see a larger version.