Lecture - Weds 20th Sept - Prof Mark Bailey, Emeritus Director of Armagh Observatory. "Ancient Stones and Comets: Developing the Giant-Comet Hypothesis"

Prof Mark Bailey
A bright comet can become the most prominent object in the sky other than the Sun and Moon and a source of wonderment and awe for those lucky enough to see one. This talk begins with an introduction to comets, their origin and proximate source in the Oort cloud; and then discusses evidence for exceptionally large, so-called "giant" comets with diameters 50km to 100km or more.  

IAA Members' Eclipse Success

Diamond Ring Eclipse

We're very pleased to report that a number of IAA members on holiday in the USA have had excellent viewing conditions for the Total Solar Eclipse - the featured image comes from Andy McCrea in Idaho with excellent conditions also being reported from Terry Moseley and Kate Russo in Wyoming and a number of members of the Irish Astronomical Community in Oregon.

Congratulations all, well done!

More to follow.

IAA Perseid Meteor Shower Barbeque - Sat 12th August - Delamont Country Park

Perseid Meteor

The Perseid Meteor shower is caused by the Earth passing through the debris trail of Comet 109P Swift-Tuttle which orbits the Sun with a 130 year period. The meteors hit the Earth's atmosphere comparitively fast, aprroximately 35 miles/sec or 120,000 mph and burn up at a height of around 50 miles. 

IAA Solar Day at WWT Castle Espie - Sun 6th Aug

The Sun in Hydrogen Alpha Light
The next popular IAA solar outreach day will be on Sunday 6th August from 2:00 to 5:00. All the usual attractions - solar observing if clear, telescope display, meteorites to handle, exhibition of space & astronomy items and of course the ever popular starshows in the Stardome, courtesy of Armagh Planetarium. Shows will run at 2:00, 2:45, 3:30 and 4:15 and tickets are bookable at the reception desk at Castle Espie