Throughout most of its long history astronomy has been based on the study of light from the stars and other celestial objects. In the language of physics this is photonic astronomy, the photon being the quantum mechanical particle of light. Yet at least two other astronomies are possible according to standard physics. The graviton, the particle asssociated with gravity, and the neutrino, associated with the weak force, share the property of being electrically neutral and stable and can thus propagate undeflected over cosmic distances.
IAA President Brian Beesley does the introduction and Webmaster Paul Evans gives a guide to the September Sky. Enjoy!
The IAA will be back again at one of our favourite venues for our summer Solar Day on Saturday 18 August. We'll have solar observing if clear, using a variety of special safe solar observing equipment, an exhibition of telescopes, meteorites and other astronomical items, and of course the very popular shows in our own stardome.
We are delighted to be able to confirm that the annual barbecue will again take place in the coach car park at Armagh Planetarium. We will be setting up from 3 p.m., and attending the Planetarium show at 4.00, “We are stars” (optional, the group rate admission charge of £7.50 per adult less 10% applies).
Please let Terry Moseley firstname.lastname@example.org know BY RETURN if you will be attending the Planetarium show and how many in your group, so he can book seats.
For the BBQ, it’s the usual format – bring all your own consumables, cutlery, chairs etc if you want them – we supply the cooking facilities.