AAS

Our inaugural meeting was on the 8th November 2010 and we officially formed in February 2011.
AAS holds monthly meetings, often with guest speakers.

All guests are welcome!
No knowledge necessary, just a curious mind.

We are able to provide assistance with setting up your telescope or just helping to find your way around the night sky.

AAS is able to host discussions on subjects as varied as Dark Energy through to 'How dark is your sky'.

Come along and get a new perspective on the universe in which you live!

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Next Meeting 7:30pm, 9th September, 2019

Potential topics for our Discussion Group

Some notes on these suggested topics can be found on the downloads page HERE 

If anyone has a topic they would like to explore then please bring it along, or send details to me at E-Mail

1  :  Expansion of the Universe  :  100 years (or so) of theory and observation.
We have gone from an expanding universe, Hubble 1929, to an accelerating universe in 1998.
What new insights or conclusions have the last 20 years brought?

1922:- Alexander Friedmann published a series of equations showing that the universe might be expanding and estimated what the expansion speed might be.
1927:- George Lemaitre published a paper in which he claimed that the recession of distant objects could be explained by a theory of an expanding universe. Observed a proportionality between recessional velocity and distance to nebulae and estimated a value for this constant.
1929:- Edwin Hubble confirmed observationally the existence of cosmic expansion.  Determined an expansion constant from the redshifts of distant objects, known as the “Hubble Constant”.
1998:- two teams of cosmologists were observing many distant supernova.  Their results seemed to suggest that, rather than the expansion rate slowing down under the influence of gravity it was actually speeding up.
So, contrary to the accepted matter dominated view of the time the expansion of the universe is accelerating.
They therefore deuced that there must be a repulsive force that is driving this acceleration.  They termed it “Dark Energy”.
2019:- Now recent research has indicated that the rate of expansion is faster than the standard model of the universe predicts.

Some questions that could be asked:-
What is the Standard Model, what is the Hubble constant that is being measured, what are the standard candles used for estimating distances, what is the discrepancy that threatens the standard model that the cosmologists are concerned about?  Where do we go next?

2  :  Dark Matter: 
          Did DM exist before the “Big Bang” and why is it suggested that the Milky Way disk is warped and twisted.

3  :  Missions:-
          The Parker Solar probe  :  New Horizons  :  James Webb Telescope  :  Square kilometre Array  :  Atomic clocks in space  :  Europa Clipper Mission.

4  :  Evolution of Stars & Galaxies
          One of the earliest stars, known as population III, found 35,000 light years away.
          Using a new technique 39 ancient galaxies have been identified.  The discovery doesn’t fit well with current models of the universe, much is hoped to be learnt from further research.

5  :  Black Holes
           A massive stellar Black Hole found that confounds current theories.

Usual time & place – 7:30pm, The Kings Head, Abergavenny
Come along and explore the cosmos.  No knowledge necessary! 

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