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Public Lecture

"Our Sun - Friend or Foe? "

By Terry Moseley of the Irish Astronomical Association.

July 10th 2017
Venue: Physics Building Trinity College Dublin

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Lecture DVD July 2017
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Our contact number is 086 06 46 555 during office hours. We apologise in advance for any inconvenience caused should you have any difficulties.

About the Lecture

The Sun is not just our nearest star, it's what makes life possible here on Earth. But as it's a gigantic ball of unbelievably hot plasma, 1,400,000 km across, powered by nuclear reactions, it's also potentially very dangerous. It emits the energy that powers photosynthesis, which is the start of the food chain for all animal life. It's also the ultimate source for most of the energy generation methods we use on Earth. But it also emits highly energetic charged particles, which are dangerous to astronauts and to pilots and passengers who regularly fly at high altitudes. These particles can also damage electric power supplies and the electronic equipment without which our modern world could not function. It also governs our climate, and even a slight increase or decrease in its energy output would have very serious consequences for us. Will it always go on shining at the steady rate it does now? We also know that some stars explode as novae or supernovae: could that possibly happen to our Sun? On the plus side, though less important, we get rainbows, nice sunsets and the amazing and beautiful aurorae - the Northern and Southern Lights. This lecture will look at all the positive and negative aspects of living so close to our Sun, and attempt to answer the question - is it Friend or Foe?.



About the Lecturer

Terry is an experienced amateur astronomer, lecturer, broadcaster and writer, with over 50 years experience, in almost every field of amateur astronomy.

He started his observational career in the Sixties, concentrating on Jupiter, Saturn, variable stars and meteors. In 1967 he appeared on the BBC's Sky At Night Programme as the expert guest on "Observations of Jupiter".

In the late Sixties he made his own 37cm fork-mounted Newtonian reflector.

He was commissioned by Pergamon Press to write a book on Astronomy and Space Research: “Reaching For The Stars” (1975, ISBN 0 08 016835 3), and has since written numerous articles for various astronomy publications.

He has been very active in local amateur astronomy societies, particularly the Irish Astronomical Association, serving on its Council continuously since 1977, including 11 years as Vice-President, and a record 10 years as President. He also edited the IAA's magazine ‘Stardust' for almost a decade.

The IAA honoured him with the award of its Fitzgerald Medal in 1992, and he is one of only two recipients of its Opik Award “For Exceptional Service to Astronomy”.

He was also the founder and President for the first three years of the Irish Federation of Astronomical Societies.

He has led major eclipse trips to Bulgaria, Turkey, China and Tanzania, and last saw totality on a cruise ship in Indonesia in 2016. He was invited to give the guest lecture on 'Eclipses of the Sun' to the Solar Conference of the History And Philosophy of Physics (HAPP) at St Cross College, Oxford in 2015.

He was elected a Member of the British Astronomical Association in 1966, and a Fellow of The Royal Astronomical Society in 1967, and was honoured by the International Astronomical Union in 2002 by having a Minor Planet named after him: 16693 Moseley.

In 2013 he was awarded the British Empire Medal in the Queen's Birthday Honours for 'Services to astronomy'.


After the lecture there will be a social reception in The Lombard and we encourage all of you to come along for a chat.
All are welcome to attend and free food will be kindly provided by The Lombard.

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A prize draw will be held after the lecture.


Booking Information

Date Monday 10th July
Subject to change - please check back later
Time 8:00p.m.

Physics Department , Fitzgerald Building, Trinity College Dublin.
There is an entrance on Lincoln Place (not far from the Merrion Square end of TCD). If you get the DART or bus to Pearse St, or drive. Use the Science Gallery entrance on Pearse Street (near the corner with Westland Row) There are maps here:  Here

Parking: Mark Street , Marks Lane , Lombard St. East .

Free Parking on the above streets after 7pm
Click HERE for a building map of Trinity College campus
Click HERE for Map of area

Admission €10 (€5 Astronomy Ireland members and concessions)
Tickets where possible should be booked in advance. Tickets can also be purchased at the door on the night, please come along 15 minutes early to accommodate.
Book Tickets July 2017
Enter Phone Number

Call 086 06 46 555 to book tickets over the phone using Debit/ Credit Card
Send a cheque/ PO/ Draft, made payable to Astronomy Ireland to PO BOX 2888, Dublin 5.


This lecture is also available to people nationwide on DVD.
To order a copy of the DVD simply:
Order by credit/ debit card online
Lecture DVD July 2017
Enter Phone Number
Call 086 06 46 555
Alternatively post a Cheque or postal order to: Astronomy Ireland, PO. Box 2888, Dublin 5.
Cost: DVD's cost €10 each incl P&P (€5 Astronomy Ireland members)
Book Tickets July 2017
Enter Phone Number
Lecture DVD July 2017
Enter Phone Number

Acknowledgment: Astronomy Ireland would like to thank the TCD Astrophysics Research Group for hosting AI public lectures in Trinity College Dublin.

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