Solar & Space Weather Physicist @DIASDunsink @TCD_Physics @LOFARIreland @BirrCastle
Dublin, Ireland
Joined July 2012
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Peter T Gallagher retweeted
Huge solar storms on surface of the Sun bring Northern Lights to Irish skies buff.ly/I5wijx9
Peter T Gallagher retweeted
The aurora borealis at Poolbeg Lighthouse last night. Didn't quite get the aurora in line with the lighthouse this time like October 2024 as the oval was turning over to North America by the time it arrived here but it's nice to get hints of it again here.
Peter T Gallagher retweeted
Aurora easily visible with naked eye beside Dublin City from the Great South Wall.
Peter T Gallagher retweeted
Magnifiques aurores boréales en Lorraine cette nuit ! - NE France – at Vitrimont, France
Loads of auroral displays seen overnight, including as far south as Cork, Ireland. The storm started at just after local midnight according to our magnetometers (magie.ie).
Now we wait for the big one to hit later today/early tomorrow …
"The Inauguration Day Flare"! Huge solar flare (X5) on the occasion of the inauguration of the Irish President. The associated mass ejection now on its way to Earth and likely to produce auroral displays visible from Ireland and other low altitude locations in the coming days.
Detected complex radio burst associated with this huge flare and eruption using the Irish LOFAR radio telescope @BirrCastle.
Please help us to raise funds for the Mighty Matthew Trust! This year, a group of friends and neighbours (including me!) will be cycling 150km from Dublin to Kilkenny this Friday to raise funds for Matthew. matthewhayestrust.org/index.…
Peter T Gallagher retweeted
Solar Orbiter Hackathon, 17–21 November 2025 at ESA/ESTEC (Noordwijk, NL).
20 ECRs (PhD and postdoc) will form 5 teams lead by mentors. This is a great chance to connect and collaborate on Solar Orbiter science!
For more information: cosmos.esa.int/web/solar-orb…
Deadline: 5th Sept.
Peter T Gallagher retweeted
Solar eclipse #otd 12 Aug 1654, observed in different ways. On the left a man points to a basin with water. Two men view the eclipse with a mirror. Others look at the sun through a piece of glass. The darkened sun has a human face (Rijksmuseum)
Peter T Gallagher retweeted
Absolutely amazed by how people can predict things so well from more than half a century ago.
Taurus-A gets scattered into an arc shape when near the Sun, predicted 1958 by Hewish, now we observed it. Very exciting journey!
Full paper: arxiv.org/abs/2506.01632
What are these kilometre hour (kmh) things that @Independent_ie speak about? Presume they mean kilometres per hour (km/h or kph)?
Peter T Gallagher retweeted
Fingal’s Operations Department has installed a new woodland pathway in the Tolka Valley, stretching approximately 1km from Mill Road, Blanchardstown (near the old entrance to Connolly Hospital) to Dunsink Lane.
This scenic path follows the Tolka River through beautiful woodlands and is now accessible for walking and wheeling, offering a peaceful green corridor for all to enjoy.
Watch our video to explore this new route and discover the natural beauty of the Tolka Valley.
#activetravel #walking #cycling #health #fitness #fingal #TolkaValley #Blanchardstown #tourism @FingalSports @Failte_Ireland @DeptHousingIRL
Peter T Gallagher retweeted
Today’s #SolarFlare was the first X-class event (the strongest category) since March, and launched an impressive filament west of Earth. The region is rotating out of view, but may still be flare-productive when it rotates back to face us two weeks from now.
“Three Irish observatories take steps towards becoming Unesco world heritage sites | Irish Independent” independent.ie/irish-news/th…
Peter T Gallagher retweeted
G4 (Severe) Geomagnetic Storm levels were observed at 16/2055 UTC due to activity associated with a pair of CMEs that left the Sun on 13 Apr. Solar wind signatures show signs of weakening, however further activity in the G1-G3 (Minor-Strong) range remain possible.
Solar eclipse: 'Weird' double sunrise and devil horns set to dazzle the US | BBC Science Focus Magazine sciencefocus.com/news/partia…
Great day @DIASDunsink talking future space missions … and looking at sunspots through the Grubb Refractor.
Astro job opportunity: Professorship in Astrophysics or Cosmology @MU_Physics timeshighereducation.com/uni…