Friday 31 August 2012

No Blue Moon, New NEO, Sugar in space, EHODs, Book Launch, Fireball reports

Hi all,
 
1. BLUE MOON? - No!
They're at it again. The media, and believe it or not, a NASA 'public outreach official', are once again peddling the myth of a 'Blue Moon' tonight. (See: http://science.nasa.gov/science-news/science-at-nasa/2012/29aug_bluemoon/ ) Why? because it's the second Full Moon (FM) this month.
   But as everyone knows, 'once in a blue moon' means something that's very rare, almost unbelievably so. It comes from the fact that on very rare occasions, the moon does actually appear blue, if for example a major volcanic eruption throws large amounts of very fine dust high into the atmosphere. This dust scatters the light in such a way as to turn the moon a slight shade of blue.
   And of course, such a 'genuine' blue moon does not have to occur at Full Moon - it can be seen any time when there is that sort of dust, and the moon is visible low down in a dark sky (though that is most likely to occur on the 5 or 6 days surrounding FM).
   The 'Blue Moon = FM twice in a month" myth originated with a story in Sky and Telescope magazine well over a decade ago, when they published an article saying that a 'Blue Moon' was when 2 Full Moons occurred in the same month. After many readers, including myself, pointed out that this was wrong, they later published a correction, withdrawing the appellation. But, like the genie out of the bottle, once the story is out there, it's very hard to stop it.
   And two FMs in the same month is not even a rare event - it happens 5 or 6 times every decade. For example, there will be four more occasions in this decade: 2015 Jan 2 & 31; 2018 Jan 2 & 31; 2018 Mar 2 & 31; and 2020 Oct 1 & 31. And of course, we can similarly get 2 New Moons, 2 First Quarters, or 2 Last Quarters, in the same month.
   It's very simple: the average interval between FMs (or NMs etc) is about 29.5 days. And 11 of the 12 months have either 30 or 31 days.
   It's not exactly 'rocket science' - is it, NASA?
  
2. Newly discovered NEO to make a close pass to Earth  (Adapted from a BAA e-circular, with thanks).
   NEO 2012 QG42 was discovered by the Catalina Sky Survey on Aug 26, and this relatively large
near-Earth asteroid will be readily observable for Irish/UK observers between September 4-14 during which time it will exceed magnitude 15.0.  It is probably between 200-500 m diameter. It will be brightest around September 10-12 when it will reach visual magnitude 13.6 on average. It passes closest to us around 05h UT on Sep 14 at a range of about 7.4 lunar-distances (0.019 AU).
   2012 QG42 is a potentially hazardous asteroid (PHA) and is unusual in that it passes very close to the opposition point on September 7. The circumstances of this close approach therefore makes it a good target for photometry (using a V, R or r' filter if possible) as well as other physical studies. An ephemeris with visibility details for UK observers is available at:
http://www.britastro.org/~rmiles/Documents/2012QG42_MPC_J77.txt
   If you are planning to observe this target then please consult the Minor Planet Center ephemeris service:
http://www.minorplanetcenter.net/iau/MPEph/MPEph.html to obtain exact positions for an observatory location near to your site at the time you require.
   This object should be within easy reach of many readers with modern CCD imaging equipment.
 
   It's a pity they didn't find it in the asterism commonly known as 'the Teaspoon', beside the Teapot in Sagittarius. Even better would be if it had been in Cr394, which looks as if it's a sugar lump being tipped out of the teaspoon. Sugar in a teaspoon in the sky would be sweet, wouldn't it? OK, so Cr394 is an open cluster, not a star-forming region, but let's not quibble. There's even another smaller cluster (NGC 6716) beside it, so you could ask 'One lump or two?'
   (The 'teaspoon' is made up of the following stars in Sagittarius: Rho1, 43, Pi, Omicron, Xi 2 and Xi1.)
 
4. European Heritage Open Days, 8 Sep: European Heritage Open Days (EHOD) are a once a year chance to discover hidden architectural treasures and enjoy a wide range of tours and events that bring our history and culture to life. Both Armagh Planetarium and Armagh Observatory are participating:
A. Armagh Observatory Open Day. There will be guided tours throughout the day; see: http://star.arm.ac.uk/press/2012/EHOD12_pr.html 
B. Armagh Planetarium Open free: Armagh Planetarium will be opening for a free day on Saturday 8th September.  You will get a chance to see one show of your choice for free.  Opening hours are from 10am - 5pm.  There are only a limited number of tickets for the digital theatre shows available so give us a call and pre-book your seat on 028 37523689.  Please visit www.armaghplanet.com for our timetable of digital theatre shows.
 
5. IAA MEMBER'S ECLIPSE BOOK LAUNCH IN BELFAST, 15 Sep. Remember the official launch of "TOTAL ADDICTION: The Life of an Eclipse Chaser" by IAA member Dr Kate Russo, at 3 p.m. on Sat 15 September, at the Queen's Film Theatre, University Square, Belfast. 
   Kate is both a clinical psychologist and a highly enthusiastic eclipse chaser, and she has combined the two in this fascinating book about what drives people to travel halfway round the world to see a Total Eclipse of the Sun. The simple answer is of course that it's probably the most amazing, incredible, mind-blowing, emotional spectacle that anyone will ever see. But there's much more to it than that, with lots of different motivations for seeing one, and an even greater range of reactions to the event.
   The event is free, with a documentary being shown in the film theatre, followed by some presentations by Kate and others - even including myself - followed by refreshments and a chance to get a signed copy, chat to Kate, and mingle with other astronomers and eclipse chasers. And some psychologists to, but don't let that put you off - they won't be analysing anybody!
   Everyone is welcome to attend. Details at  - www.beingintheshadow.com and look under events.
 
6. Fireball Reports: Prof Mark Bailey of Armagh Observatory asked me to mention that the Observatory has a web page devoted to fireball reports: See http://arpc65.arm.ac.uk/fireballs/
 
7. INTERESTING WEBLINKS: 
 
8. TWITTER: the IAA now has a twitter account:  @IaaAstro


9. BBC THINGS TO DO WEBSITE: See the forthcoming IAA events on  
 
10. JOINING the IRISH ASTRONOMICAL ASSOCIATION is now even easier: This link downloads a Word document to join the IAA. http://irishastro.org.uk/iaamembership.doc. If you are a UK taxpayer, please tick the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you.  See also www.irishastro.org
 
Clear skies,
Terry Moseley

Wednesday 29 August 2012

Dave's 2nd S/nova, Neil, Fireball, Curiosity, IAA lecture, Booklaunch, Exhib/pic

Hi all, 
 
1. Dave Grennan discovers his second Supernova from Raheny.
Many congratulations to Dave for discovering his second supernova - and not from some dark sky site with an ideal climate, but from his own observatory in Raheny, Dublin! Dave used his 36cm Schmidt Cassegrain telescope for the discovery images. Discovered on August 22nd, it has just been confirmed. Dave was the first person in the world to spot the light from the gigantic explosion of the dying star. It has been designated 2012ej and is his second supernova discovery in two years!
   The exploding star was in 13th magnitude galaxy IC2166 (PGC 19064) in Lynx, and was magnitude 16.2 at discovery. It lies at a distance of about 120LY, and is a classic Type 1C supernova. The discovery was confirmed by Tom Boles (the world's leading discoverer of supernovae), who recently gave a fascinating lecture on the subject to the IAA in Belfast.
   The first supernova discovery from Ireland was by Belfast amateur Isaac Ward, in 1885: that one was in M31, the Andromeda Galaxy. See: http://adsabs.harvard.edu/full/1985IrAJ...17...98B and http://en.wikipedia.org/wiki/S_Andromedae and http://www.culturenorthernireland.org/article.aspx?art_id=643
  So this is the third supernova to have been discovered from Ireland. The second was also discovered by Dave Grennan in 2010 - and once again his discovery required lots of patience and some highly specialised equipment.… Read more at:
 
2. Neil Armstrong dies. The world is mourning the death on August 25 of Neil Armstrong, aged 82, the first human being on the Moon. I had the privilege to meet him, with Sir Patrick Moore, at the BBC in London, but I hadn't the nerve to ask for an autograph! 
   Armstrong also visited Ireland in 2003 for a 'face to face' public interview by Gay Byrne in the National Concert Hall, Dublin, and many readers will remember how natural and sincere and modest he was on that occasion.
   His cool nerve and skill in manually piloting the Lunar Module onto the surface when the computer was going to land them in a boulder field, and when they were almost out of fuel was amazing. I watched it live on TV, and was almost falling off the front of my seat with the tension.
   Although he was undoubtedly the right man for the mission in terms of ability, he never adjusted to the world-wide fame and press attention that followed, and became more and more of a private individual, which of course was his right.
   He claims to have ancestry from Co Fermanagh, though I don't think that the details are clear.
   It's the end of an era. I'm sure that all members of the IAA, and other readers, will join me in expressing sincere condolences to his family and friends.
More details at:
http://www.telegraph.co.uk/science/space/9501410/Neil-Armstrong-the-reluctant-hero-joins-the-immortals.html and http://hanlonblog.dailymail.co.uk/
 
3. Exploding Fireball over Wales:
 A fireball was widely seen over South Wales, and is reported to have exploded with a boom so loud that it set off car alarms. See
There are several errors in this report, from David Whitehouse:
1. He's not an astrophysician - that would be a space doctor! However, this report does need some 'doctoring' -
2. It's meteors, not meteorites, that burn up at 60 - 100 miles altitude. Meteorites survive to a much lower altitude, by definition.
3. The asteroid that 'killed the dinosaurs' was not 'the size of Britain'! - one that big would have wiped out all life on Earth! It was 'only' about 15 miles in diameter.
4. This one was probably bigger than a golf ball.
5. The word 'soon' should be 'seen'.
 
4. CURIOSITY ON MARS: Curiosity has now commenced its exploration of the Red Planet. See these weblinks for more details.
     And that forms the topic of the first IAA lecture of the new season: see below.
 
5. SPACE EXPERT TO GIVE IAA LECTURE on 'CURIOSITY', 19 SEP.
Well known broadcaster and journalist Leo Enright will give the opening lecture of the new season of IRISH ASTRONOMICAL ASSOCIATION meetings on Wednesday 19 September, at 7.30 p.m. The subject will be what is currently the hottest topic in astronomy and space exploration: the amazing Curiosity rover on Mars. Leo is not only a renowned expert on anything to do with space science, but an excellent and very entertaining speaker: I'm sure that everyone has heard him on radio or TV so you know what to expect.
   This is bound to be a very popular lecture, so don't miss it.
Venue: Bell Lecture Theatre, Physics Building, main campus, QUB. Doors open about 7.15. There is free parking available on the campus in the evenings.
Admission Free, including light refreshments.
With thanks to the Astrophysics Research Centre, QUB, for assistance with this event.
 
6. IAA MEMBER'S ECLIPSE BOOK LAUNCH IN BELFAST, 15 Sep. I'm delighted to announce the official launch of "TOTAL ADDICTION: The Life of an Eclipse Chaser" by IAA member Dr Kate Russo. It will be at 3 p.m. on Sat 15 September, at the Queen's Film Theatre, University Square, Belfast. Details in the flyer attached with the last email.
   Kate is both a clinical psychologist and a highly enthusiastic eclipse chaser, and she has combined the two in this fascinating book about what drives people to travel halfway round the world to see a Total Eclipse of the Sun. The simple answer is of course that it's probably the most amazing, incredible, mind-blowing, emotional spectacle that anyone will ever see. But there's much more to it than that, with lots of different motivations for seeing one, and an even greater range of reactions to the event.
   The event is free, with a documentary being shown in the film theatre, followed by some presentations by Kate and others - even including myself - followed by refreshments and a chance to get a signed copy, chat to Kate, and mingle with other astronomers and eclipse chasers. And some psychologists to, but don't let that put you off - they won't be analysing anybody!
   Everyone is welcome to attend, but if you do intend to go, please respond as per the attached, so that they know how many to expect.
 
7.  Exhibition: A View of the Cosmos by Tom O'Donoghue, Sep 6 - 12
Tom O'Donoghue, who is one of Ireland's leading astrophotographers, is holding an exhibition of his superb images at the Centre for Creative Practices in Dublin from 6 to 12 Sep. Entitled A View of the Cosmos, it will feature some of his latest single frame images and also some widefield mosaics of up to 60h exposure time per photograph.
   The exhibition begins at 6 pm on September 6th at 15 Pembroke Street Lower, Dublin 2. You can see some of Tom's work on his website at www.astrophotography.ie
 And Tom's excellent work has just been rewarded with his superb photo of the region round Rho Ophiuchi being chosen as NASA's Astronomy Picture Of the Day: see: http://apod.nasa.gov/apod/astropix.html
  
8. INTERESTING WEBLINKS: 
 
9. TWITTER: the IAA now has a twitter account:  @IaaAstro


10. BBC THINGS TO DO WEBSITE: See the forthcoming IAA events on  
 
11. JOINING the IRISH ASTRONOMICAL ASSOCIATION is now even easier: This link downloads a Word document to join the IAA. http://irishastro.org.uk/iaamembership.doc. If you are a UK taxpayer, please tick the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you.  See also www.irishastro.org
 
Clear skies,
Terry Moseley

Saturday 25 August 2012

Curiosity @ Mars; IAA meeting; Eclipse Book launch, Belfast; Exhibition, TV, Job

Hi all,
 
1. CURIOSITY ON MARS: After an amazingly complicated and risky landing sequence, Curiosity has now commenced its exploration of the Red Planet. See some of the weblinks below for more details. And that forms the topic of the first IAA lecture of the new season: see below.
  
2. SPACE EXPERT TO GIVE IAA LECTURE on 'CURIOSITY', 19 SEP.
Well known broadcaster and journalist Leo Enright will give the opening lecture of the new season of IRISH ASTRONOMICAL ASSOCIATION meetings on Wednesday 19 September, at 7.30 p.m. The subject will be what is currently the hottest topic in astronomy and space exploration: the amazing Curiosity rover on Mars. Leo is not only a renowned expert on anything to do with space science, but an excellent and very entertaining speaker: I'm sure that everyone has heard him on radio or TV so you know what to expect.
   This is bound to be a very popular lecture, so don't miss it.
Venue: Bell Lecture Theatre, Physics Building, main campus, QUB. Doors open about 7.15. There is free parking available on the campus in the evenings.
Admission Free, including light refreshments.
With thanks to the Astrophysics Research Centre, QUB, for assistance with this event.
 
3. IAA MEMBER'S ECLIPSE BOOK LAUNCH IN BELFAST, 15 Sep. I'm delighted to announce the official launch of "TOTAL ADDICTION: The Life of an Eclipse Chaser" by IAA member Dr Kate Russo. It will be at 3 p.m. on Sat 15 September, at the Queen's Film Theatre, University Square, Belfast. Details on the attached flyer.  
   Kate is both a clinical psychologist and a highly enthusiastic eclipse chaser, and she has combined the two in this fascinating book about what drives people to travel halfway round the world to see a Total Eclipse of the Sun. The simple answer is of course that it's probably the most amazing, incredible, mind-blowing, emotional spectacle that anyone will ever see. But there's much more to it than that, with lots of different motivations for seeing one, and an even greater range of reactions to the event.
   The event is free, with a documentary being shown in the film theatre, followed by some presentations by Kate and others - even including myself - followed by refreshments and a chance to get a signed copy, chat to Kate, and mingle with other astronomers and eclipse chasers. And some psychologists to, but don't let that put you off - they won't be analysing anybody!
   Everyone is welcome to attend, but if you do intend to go, please respond as per the attached, so that they know how many to expect.
 
4.  Exhibition: A View of the Cosmos by Tom O'Donoghue, Sep 6 - 12
Tom O'Donoghue, who is one of Ireland's leading astrophotographers, is holding an exhibition of his superb images at the Centre for Creative Practices in Dublin from 6 to 12 Sep. Entitled A View of the Cosmos, it will feature some of his latest single frame images and also some widefield mosaics of up to 60h exposure time per photograph.
   The exhibition begins at 6 pm on September 6th at 15 Pembroke Street Lower, Dublin 2. You can see some of Tom's work on his website at www.astrophotography.ie
 
5. ASTRONOMY PROGRAMMES ON TV: (thanks to Peter Paice for the alert)
  Mon 27 Aug.  BBC2 9-10pm Horizon "How Big is the Universe?"
  Tues. 28 Aug. BBC4 9-10pm "The Horizon Guide to Mars"
 
6. LECTURESHIP in ASTRONOMY & SPACE SCIENCE, UCD
A two-year lectureship in Astronomy & Space Science is offered in the School of Physics at University College Dublin. The closing date for applications is 30th August and the successful candidate will be
expected to start as soon as possible as teaching term starts on September 10th. 
Full details of the position and application procedure are available on the UCD HR Job Vacancies web
site: http://www.ucd.ie/hr/jobvacancies/
(Select "Job Vacancies for External Candidates" and then "Search by Reference Number". The reference number for the position is: 005353.)

 
7. ISS. The International Space Station is still visible in evening skies over Ireland for another day or two. Details for your own location are available, along with much other information, on the excellent and free site: www.heavens-above.com
 
8. INTERESTING WEBLINKS: 
http://arxiv.org/pdf/1206.0015v2.pdf (dark matter discovered near the Sun?
 
9. TWITTER: the IAA now has a twitter account:  @IaaAstro


10. BBC THINGS TO DO WEBSITE: See the forthcoming IAA events on  
 
11. JOINING the IRISH ASTRONOMICAL ASSOCIATION is now even easier: This link downloads a Word document to join the IAA. http://irishastro.org.uk/iaamembership.doc. If you are a UK taxpayer, please tick the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you.  See also www.irishastro.org
 
Clear skies,
Terry Moseley
IST, PLEASE REPLY SAYING "UNSUBSCRIBE".

Saturday 11 August 2012

Perseids, Perseid Party, Solar Day, ISS, Weblinks

Hi all,
 
1. Perseid Party, 11 August, Delamont Country Park. The Irish Astronomical Association will host another 'Perseid Party' for the maximum of the most popular of the annual meteor showers on the evening of Sat 11 August, at DCP just S of Killyleagh, Co Down. We will start off with a fry-up, or BBQ depending on your tastes, in the early evening, followed by an observing session in the nice dark skies of the country park late into the night if it stays clear. Obviously this is weather dependant, so check the IAA website (www.irishastro.org) before going, to check on the latest situation. Moon conditions this year are very favourable - see below.
  
2. PERSEID METEORS to peak on August 12. The Perseids are the best-known of the year's meteor showers, and are usually the most popular as the nights do not get as cold as the other major showers in the winter! Maximum this year is predicted for 10.00 on 12 August, which means that the night of 11-12 August should give the highest observed rates, with the night of Aug. 12-13 next best. The Moon will be only a thin waning crescent, and won't rise until late in the night, so moonlight won't interfere this year.
   The shower actually begins with a low level of activity at the end of July, building up gradually in intensity until the maximum, and then declining until it ends about 19-20 August. With Full Moon occurring on 2 August, the best period for observation will be from about 7 August onwards.
  The meteors appear to come from the constellation of Perseus, which will be rising in the NE as darkness falls, but they can be seen anywhere in the sky. The best area to look is to centre your gaze on an area of sky about 50 degrees to the left or right of the radiant (whichever is clearer and darker), and about 55 degrees above the horizon. The Perseids are tiny particles cast off by comet 109p Swift-Tuttle.
   Perseids are swift, and often bright, and in a clear dark sky you should see an average of at least one per minute, including a few spectacular fireballs. Don't miss it.
 
3. Solar day at WWT, 12 August: Rounding off a busy weekend, the IAA will be running another one of our popular Solar Days at the WWT, Castle Espie, near Comber, Co Down, on Sunday afternoon, 12 August, from 2 - 5 p.m. This will comprise viewing the Sun in visible light, H-Alpha and Calcium light, using special solar telescopes and filters, if the sky is clear. We will also have starshows in the Stardome portable planetarium (thanks to Dr Tom Mason of Armagh Planetarium), and an exhibition of amazing meteorites from outer space, space photos, memorabilia, and other items. A great day for all the family, even if it is cloudy. See: www.irishastro.org for more details.
 
4. ISS. The International Space Station is now visible in both morning and evening skies over Ireland. Details for your own location are available, along with much other information, on the excellent and free site: www.heavens-above.com
 
 
5. INTERESTING WEBLINKS: 
 
 
 
6. TWITTER: the IAA now has a twitter account:  @IaaAstro


7. BBC THINGS TO DO WEBSITE: See the forthcoming IAA events on  
 
8. JOINING the IRISH ASTRONOMICAL ASSOCIATION is now even easier: This link downloads a Word document to join the IAA. http://irishastro.org.uk/iaamembership.doc. If you are a UK taxpayer, please tick the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you.  See also www.irishastro.org
 
Clear skies,
Terry Moseley


Saturday 4 August 2012

Curiosity to Mars, Perseids, Solar day, Eclipse book, Weblinks, Balbriggan AC

Hi all,
 
1. Curiosity Rover to Land on Mars: Nasa's most ambitious Mars mission to date will reach a crucial milestone on the morning of 6 August when the SUV sized rover is due to land on the Red Planet. This will involve the most complex landing sequence ever attempted: see http://science.nasa.gov/science-news/science-at-nasa/2012/16jul_daring/, http://www.dailymail.co.uk/sciencetech/article-2182549/Mars-fever-set-world-Parties-planned-globe-Curiosity-survives-seven-minutes-terror-descent-shown-big-screen-Times-Square.html, http://spaceflightnow.com/mars/msl/120724odyssey/, http://spaceflightnow.com/mars/msl/120729tcm/
    (A) Celebrate the Curiosity Landing Live on Google + Starting at 03:00 UTC August 6th (8:00 p.m. PDT August 5th) a live, 4-hour webcast, accessible via Google Hangout on Air, will highlight the landing of the Mars rover Curiosity. During the webcast, scientists, engineers and other experts will provide unique insight into the rover and the landing, and viewers will have the chance to interact and ask questions.
   Hosted by Universe Today's Fraser Cain, along with Dr. Pamela Gay and Dr. Phil Plait, the webcast will feature interviews with special guests, a live video feed from NASA of the landing, and live coverage from the Jet Propulsion Laboratory (JPL) and the Planetary Society's PlanetFest by reporters Scott Lewis and Amy Shira Teitel, who will be on location to interview members of the MSL team.
More: http://www.astronomerswithoutborders.org/news/1215-celebrate-the-curiosity-landing-live-on-google-.html
   (B) MSL Live coverage by NASA JPL: As Curiosity prepares to make its historic descent to the surface of
Mars, the Earth's inhabitants will be watching... and waiting. Officially known as the Mars Science Laboratory, Curiosity is the largest and most sophisticated vehicle ever sent to explore the surface of another planet.  With a landing system specially developed to lower the 900 kg rover safely to the Martian surface, Curiosity will be on its own for seven minutes as it descends towards Mars. There's nothing controllers at JPL back on Earth can do but wait, and the rest of the world will watch and wait with them. Catch the live
coverage at: http://mars.jpl.nasa.gov/msl/participate/
2. Perseid Party, 11 August, Delamont Country Park. The Irish Astronomical Association will host another 'Perseid Party' for the maximum of the most popular of the annual meteor showers on the evening of Sat 11 August, at DCP just S of Killyleagh, Co Down. We will start off with a fry-up, or BBQ depending on your tastes, in the early evening, followed by an observing session in the nice dark skies of the country park late into the night if it stays clear. Obviously this is weather dependant, so check the IAA website (www.irishastro.org) before going, to check on the latest situation. Moon conditions this year are very favourable - see below.
  
3. PERSEID METEORS to peak on August 12. The Perseids are the best-known of the year's meteor showers, and are usually the most popular as the nights do not get as cold as the other major showers in the winter! Maximum this year is predicted for 10.00 on 12 August, which means that the night of 11-12 August should give the highest observed rates, with the night of Aug. 12-13 next best. The Moon will be only a thin waning crescent, and won't rise until late in the night, so moonlight won't interfere this year.
   The shower actually begins with a low level of activity at the end of July, building up gradually in intensity until the maximum, and then declining until it ends about 19-20 August. With Full Moon occurring on 2 August, the best period for observation will be from about 7 August onwards.
  The meteors appear to come from the constellation of Perseus, which will be rising in the NE as darkness falls, but they can be seen anywhere in the sky. The best area to look is to centre your gaze on an area of sky about 50 degrees to the left or right of the radiant (whichever is clearer and darker), and about 55 degrees above the horizon. The Perseids are tiny particles cast off by comet 109p Swift-Tuttle.
   Perseids are swift, and often bright, and in a clear dark sky you should see an average of at least one per minute, including a few spectacular fireballs. Don't miss it.
 
4. Solar day at WWT, 12 August: Rounding off a busy weekend, the IAA will be running another one of our popular Solar Days at the WWT, Castle Espie, near Comber, Co Down, on Sunday afternoon, 12 August, from 2 - 5 p.m. This will comprise viewing the Sun in visible light, H-Alpha and Calcium light, using special solar telescopes and filters, if the sky is clear. We will also have starshows in the Stardome portable planetarium (thanks to Dr Tom Mason of Armagh Planetarium), and an exhibition of amazing meteorites from outer space, space photos, memorabilia, and other items. A great day for all the family, even if it is cloudy. See: www.irishastro.org for more details.
 
5. Eclipse Chasers book by IAA member ready for pre-order.  "Total Addiction: The life of an Eclipse Chaser".  (This is from Dr Kate Russo, edited by TM):
   I am delighted to announce that my book about eclipse chasers is now finished, and available to pre-order on Amazon with a release date of end of July. I hope all eclipse chasers will find it an enjoyable read.  It nicely bridges the gap between astronomy and psychology. But I think the book really comes alive through the interview analysis I undertook with nine eclipse chasers. Through the detailed analysis of these interviews, I have been able to tease out the key features of what we experience during totality.  I also try to explain what motivates all of us to be so passionate about chasing eclipses. 
   Many thanks to all of you who completed the survey, participated in interviews, and have contributed by way of comments, suggestions, quotes, explanations and photographs.  Special thanks to Terry Moseley, Jay Anderson, David Makepeace, James McClean, Dave Balch, and Rick Brown for participating in the interviews.  Thanks also to Glenn Schneider, Michael Zeiler, Fred Espenak, Jay Pasachoff, Daniel Lynch, Xavier Jubier, Miloslav Druckmullar for your contributions. 
   Special thanks also for contributions by Dava Sobel, Diane Ackerman, and Sir Patrick Moore who was one of the nine chasers featured.  It was a real privilege to meet with Sir Patrick, even if I did leave his house rather tipsy after several strong G&T's!  The whole project from start to finish was really quite enjoyable, and I have been touched by how supportive, friendly, open and helpful folk have been.  It is a great community to be involved with.
   If you are planning to read the book (and I hope many of you do), then I'd be really interested in your feedback.  You can do this via Amazon, or directly to me at my preferred email umbraphillia@gmail.com.  I am also in the final stages of developing a website where folk are welcome to add comments.  Details of the site will be announced when it is ready (note – I am not an IT expert, this may take a few weeks). 
   Next steps – I will be having a book launch party here in Belfast most likely in September, before I then go to Australia for six months where I plan to be involved in various outreach activities related to the eclipse, in addition to doing a little book tour in the path of totality.  Kate Russo, Eclipse chasing Psychologist.
   (IAA members had a very interesting talk by Kate last year, and some participated in the surveys for the book. I've seen the proof copy, and it really does make fascinating reading. I thought that I was addicted, but just wait until you read some of the accounts from other eclipse-chasers!)
 
6. INTERESTING WEBLINKS: 
 
7. Balbriggan Astronomy Club from Carl O'Beirnes.

I'm very happy to report after a long and hard road Balbriggan Astronomy Club is now up and running. Our first public watch will be for the Perseid meteor shower and will be held on Saturday and Sunday August 11th and 12th in the dark grounds of Ardgillan Castle, just south of Balbriggan itself.

    The Perseids will be a great start for the clubs first observing session as you don't need any telescopes to view the meteor shower. There will be lots of telescopes on hand though to view other wonders of the night sky.

    Contact Carl at carl@webtreatz.com for more details. Please note, only confirmed attendees will be permitted access to the grounds of Ardgillan Castle for the watch!

 

8. Dublin Stargazers meet up for the Perseids

The Dublin Stargazers Meetup group are planning to get together for observing the Perseid meteor shower on the night of August 11th. The venue is the car park at the foot of the Sugarloaf in Wicklow and more details can be found at http://www.meetup.com/The-Dublin-Stargazers-Group/events/65595802/   

(courtesy of John Flannery)
 
9. TWITTER: the IAA now has a twitter account:  @IaaAstro


10. BBC THINGS TO DO WEBSITE: See the forthcoming IAA events on  
 
11. JOINING the IRISH ASTRONOMICAL ASSOCIATION is now even easier: This link downloads a Word document to join the IAA. http://irishastro.org.uk/iaamembership.doc. If you are a UK taxpayer, please tick the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you.  See also www.irishastro.org
 
Clear skies,
Terry Moseley