2. Public Lecture: "The Next Generation Space Telescopes" by Dr. Nicholas Devaney: Monday 7 January at 7:30pm; Westwood Hotel, Newcastle, Clifden Rd, Galway
3. DIAS lectures in Dublin celebrate 75th anniversary: See https://dias.ie/dias75: Last one in series "Mathematics vs astronomy in early medieval Ireland" by Dr Immo Warntjes (Queen's University Belfast), 11 December. Admission free but advance booking is necessary.
The Zenithal Hourly Rate (ZHR) is the rate which would be seen by an experienced observer, in a VERY dark sky, and with the radiant in the zenith: actual observed rates very rarely reach the nominal ZHR for various reasons.
If you have a digital SLR which can give longish time exposures, and you can manually focus it on infinity, and adjust it to a high ISO (film speed equivalent), you can image meteors with a bit of luck. Make a suitable lens hood, or heater, to prevent dew on the camera lens. You'll also need a locking cable release (plus a spare one), and preferably a tripod.
Point the camera about 50° up in the sky, about 40° from the radiant, for best results. Consult your camera handbook, or experiment with exposures, until the sky fogging becomes too severe. See:
You can submit your images and relevant details to firstname.lastname@example.org
The Star of Bethlehem is an iconic astronomical event whose true origin remains unknown even today, in spite of years of speculation and research. The show will guide the viewer through some of these investigations and the most likely causes of this interesting cosmological object which was remarkable enough to make the wise men travel across the desert from Babylon to Bethlehem to see the new born baby.
You will also explore possible dates for the birth of Christ and look at the historical records of significant astronomical events which occurred at this time.
The show opens on Tuesday 1 until Wednesday 23 December 2015.
Monday – Friday (1-18 Dec) at 2pm
Saturday/School Holidays at 1pm and 4pm
Evening shows every Tuesday, Wednesday and Thursday from 1-17 December at 7:30pm
Tel - 028 3752 3689 to pre-book your seats
14. Interesting Weblinks
Stellar chameleon puzzle solved: http://www.sciencedaily.com/releases/2015/12/151204000244.htm
Giant young galaxies shrouded in Dark Matter http://www.sciencedaily.com/releases/2015/12/151204111345.htm
http://www.dailymail.co.uk/sciencetech/article-3343015/Narrowing-source-mysterious-fast-radio-bursts-Astronomers-discover-bizarre-sig.html and http://www.sciencedaily.com/releases/2015/12/151202132932.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Ftop_news%2Ftop_science+%28ScienceDaily%3A+Top+Science+News%29
EHT reveals magnetic fields at MW's Black Hole http://www.sciencedaily.com/releases/2015/12/151203150233.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Ftop_news%2Ftop_science+%28ScienceDaily%3A+Top+Science+News%29
http://www.dailymail.co.uk/sciencetech/article-3342950/What-universe-Hot-gas-mainly-Cosmic-web-filaments-make-space-galaxies-reach-temperatures-18million-F.html In places they are confusing dark matter and dark energy.
The composition of the universe: http://www.sciencedaily.com/releases/2015/12/151202132934.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Ftop_news%2Ftop_science+%28ScienceDaily%3A+Top+Science+News%29
Excellent background information on GWs. http://www.dailymail.co.uk/sciencetech/article-3343164/LISA-Pathfinder-launch-countdown-restarts-Mission-detect-Einstein-s-gravitational-waves-given-ahead-technical-issue.html
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. You can also make a donation via Paypal if you wish: just click on the 'Donate' button. See also www.irishastro.org.