Hi all,
1. IAA LECTURE, 7 March: The Astronomical Association's next public lecture will be given by Dave McDonald Title: "Celtic Rock: Discovering Asteroids from Ireland". The lecture is on WEDNESDAY 7 March, at 7.30 p.m., in the Bell Lecture Theatre, Physics Building, Queen's University, Belfast. ADMISSION IS FREE, as always, and includes light refreshments. Everyone is welcome! Full details of the rest of the programme are on the website: www.irishastro.org Synopsis: In 1848, Andrew Graham stared through the telescope at Markree Observatory in County Sligo and saw a new object. He had discovered an asteroid - a chunk of rock left over from the formation of our Solar System 5 billion years ago. As it happens, this chunk of rock (about 230 miles in diameter) was the ninth asteroid ever discovered world-wide and the only one discovered from Ireland. "Celtic Rock" will take you on a whistle-stop tour through our Solar System and put asteroids into context - where are they? How did they get there? Where are they going? The presentation will touch on the various discoveries made from Ireland and will mention some of the previous asteroid impacts on Earth and some very close-shaves. The talk will wrap-up with a very brief history of Irish Astronomy and will look at what the future might hold.The presentation is highly graphical and requires nothing more than an enquiring and interested mind.
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3. IAA at Lough Neagh Discovery Centre, near Lurgan, on 30 March, evening: This event had already been booked well before the BBC Stargazing Live event. It too will have our usual format (but without the broadcast this time). This will be similar to other recent events, except that we will be running the whole event ourselves, with the Stardome of course (loaned from Armagh Planetarium with thanks once again). See www.irishastro.org
4. COSMOS 2012: The Midlands Astronomy Club have finalised the programme for their very popular annual star party, at Annaharvey Farm, just outside Tullamore, Co Offaly, on the W/E of 13-15 April. Speakers include:
- Thierry Legault, world-renowned French astrophotographer
- Girvan McKay, Midlands Astronomy Club
- Eamon Ansbro, Kingsland Observatory, Roscommon
- Kevin Berwick, Dublin
- Dermot Gannon, Midlands Astronomy Club
- Apostolos Christou, Armagh Observatory
- Lawrence Rigney, Midlands Astronomy Club
More details are available on the website www.midlandsastronomy.com
5. Lectures in RDS, Dublin: In celebration of Dublin's status as European City of Science 2012, UCD School of Physics has teamed up with the RDS to bring some of the world's leading physicists to speak in Dublin about the latest developments in their fields of research. Please note these lectures are aimed at a public audience. Full details of these lectures and booking information can be found on the UCD website: http://ssmr.ucd.ie/speakerseries2012/speaker_series2012.html Titan - The Moon that thinks it's a Planet - Prof. John Zarnecki. Tuesday March 20, 2012
Minerva Suite; 6.00pm – 7.30pm.
Lasers in the Fast Lane - Prof. Wilson Sibbett. Tuesday May 15, 2012. RDS Concert Hall
6.00pm - 7.30pm
6. Armagh Observatory Public Astronomy Event, 17 March.
AO's next public event will be a pair of back-to-back public lectures in St. Patrick's Trian on the morning of St. Patrick's Day, Saturday 17th March, followed by tours of the Observatory Grounds and Astropark, as its contribution to Armagh City and District's Saint Patrick's Day festivities on Saturday, 17th March 2012
DETAILS:
The programme of fascinating astronomical talks, "Discovering the Universe", begins with light refreshments at 10:30am in St. Patrick's Trian, Armagh. Two public lectures are being provided, one on the risk to Earth posed by comet and asteroid impacts with our planet, the other a review of efforts during the eighteenth century to measure the size of our solar system and the role played by very rare planetary transits across the face of our Sun. The next Transit of Venus, the last for more than a hundred years, will be visible from Europe on 6th June this year.
The free public lectures will take place in the Rotunda Theatre, St. Patrick's Trian, each lasting an hour and with time for questions, ending at 1:00pm.
• The first talk, beginning at 11:00am, is by Mr Jay Tate, Director of the Spaceguard Centre, Knighton,
Wales. His presentation, "The Science of Armageddon: an Update", will explain how the Earth has a long
and violent history of collisions with extraterrestrial bodies such as asteroids and comets, and how some
of these impacts have been large enough to cause huge environmental upheavals, mass extinctions of life
and severe changes to global climate and geography. Massively more destructive than the most powerful
nuclear weapons, such impacts represent the most damaging natural hazard likely to end civilization as
we know it. The talk will review the nature and extent of the Near-Earth Object (NEO) impact hazard and
bring us up to date with the latest understanding in the field: how the risk can be dealt with and what is
currently being done.
Jay Tate is one of the world's leading authorities in this subject, having led efforts over the past fifteen years
to highlight the risk to civilization posed by these extreme events and improve public understanding of
natural events about which, fortunately, we have no direct experience.
• The second talk, at 12:00, will be given by Armagh Astronomer Dr John Butler. He will provide a
contrasting historical talk, "Measuring the Solar System: The Eighteenth Century Transits of Venus".
The eighteenth century was a "Golden Age" for science, and many new and important discoveries were
made in astronomy. The two eighteenth-century Transits of Venus, in 1761 and 1769, provided a rare
opportunity to determine the fundamental unit of astronomical distance: the distance from the Earth to the
Sun. The talk will describe how astronomers across the world united in this, the first great international
scientific project. It will explain the difficulties they faced in carrying out their observations and their
eventual success and the scientific legacy of their efforts.
John Butler has worked at Armagh for nearly all his astronomical career. He was instrumental in the design and construction of the Astropark, and has led efforts during the past twenty years to conserve and preserve the built heritage of the Armagh Observatory and to calibrate the unique meteorological record, the longest daily climate series in the UK and Ireland. His research interests encompass cool stars, the effects of solar variability on climate, and the history of astronomy, and he is well known for his active involvement in the community of Armagh and for discovering an exceptional flare on the star HD 6090, called "Butler's star".
Everyone is welcome to these events. Free tickets for the "Discovering the Universe" presentations are available from Mrs Aileen McKee, Armagh Observatory, College Hill, Armagh; Tel. 028-3752-2928; E-mail: ambn@arm.ac.uk. No booking is necessary to join the guided tour "Bringing Heaven Down to Earth" or the Observatory tour and exhibition. Meet outside the Observatory at 2.30pm and 4.00pm respectively.
FOR FURTHER INFORMATION PLEASE CONTACT: John McFarland at the Armagh Observatory, College Hill, Armagh, BT61 9DG. Tel. 028-3752-2928; FAX: 028-3752-7174 jmf@arm.ac.uk.
7. Venus, Jupiter and Mercury: Venus is now exceptionally prominent in the evening twilight as the brilliant 'evening star'. It continues to move closer to Jupiter, which is noticeably fainter than Venus, but still much brighter than any of the stars.
And you can use these two planets as finders for the most elusive of the other naked-eye planets: Mercury, the innermost planet. It can be quite bright, as at present, but is always close to the Sun in the sky, so we can only see it low down in fairly bright twilight.
At the moment it's well placed for viewing from Ireland. At about 30 minutes after local sunset, follow the line from Jupiter through Venus down towards the horizon, and then look a bit to the left of that line, and about 5 - 7 degrees above the horizon. 5 degrees is about the width of your clenched fist, across the knuckles, when held out at arm's length in front of you. Look for a twinkling star glimmering through the twilight. It's actually as bright as the brightest stars, but is quite hard to see because of the bright sky background. If you don't see it at first, keep looking up until about 50 minutes after sunset, a bit closer to the horizon after every 5 minutes or so, after which time it will be too low to be visible.
Use binoculars if you have them, but DO NOT look while the Sun is above the horizon in case you accidentally get it in the field of view and blind yourself!
8. Aurora alerts. A lot of people who are not particularly interested in astronomy have asked me about seeing an aurora from Ireland/UK. I'm therefore going to set up a separate alert bulletin for possible aurora events only. If you know anyone who would like to get alerts of chances when aurorae might be visible from here (but not these more comprehensive bulletins), send me their email address, or ask them to email me directly.
I will of course include such information in these general astronomy bulletins too!
9: Earth Hour 2012 March 31, 20:30 - 21:30. Switch off all unnecessary lights, see the sky, and save the planet! Take part in a global call to action to highlight concerns about climate change and the way we are wasting the worlds limited resources
10. BCO Events. A wide variety of scientific events continue into next month at Blackrock Castle Observatory, Cork. see
www.bco.ie
12. BBC THINGS TO DO WEBSITE: See the forthcoming IAA events on
Clear skies,
Terry Moseley
