A partial solar eclipse pictured in the sky above Lisburn in 2022
Skywatchers are set to witness two major celestial events next week, with a deep partial solar eclipse followed by the peak of the Perseid meteor shower.
More than 90% of the sun will be obscured across Ireland during the early evening on Wednesday – the largest solar eclipse visible from the island until September 2090.
For those on holiday abroad, mainly in Spain, a total eclipse can be expected.
"Not only is it the first total eclipse visible from western Europe since 1999, but just a few hours later it's one of the best meteor showers of the year – as if to celebrate the event with celestial fireworks", according to David Moore, Editor of Astronomy Ireland Magazine.
"And then in two weeks we have a lunar eclipse visible, so August is an incredible month".
The event will begin at approximately 18:10 BST, although timings will vary depending on location.
County Kerry Coast will see most of the sun blocked out
At its peak, viewers in Belfast can expect the sun to be covered by the moon by 93.05%, those in Londonderry will have coverage of 93.77%, while in Cork the sun will be obscured by 96.43%
Skellig Michael, off the County Kerry Coast, will see most of the sun blocked out, at about 98.01%.
Dr Rok Nežič from Armagh Observatory and Planetarium said the eclipse would be noticable
"It should get noticeably darker," according to Dr Rok Nežič from Armagh Observatory and Planetarium.
"Even though more than 90% of the sun will be covered, it will still be kind of bright, but it should seem like you're under some thick cloud.
"It won't be as extreme or as spectacular as a solar eclipse, but it will still be noticeable."
Astronomers have warned people never to look directly at the sun during a partial eclipse.
Even when most of the star is covered, the visible section remains bright enough to cause damage to the eye.
"The problem is that our retinas don't have pain receptors, so you won't know that you're damaging your eyes" Nežič added.
Instead, viewers should use certified eclipse glasses for naked eye viewing, but not while looking through binoculars or a telescope.
Further information can be found here.
People can also watch safely by projecting an image of the sun onto a white card using a telescope, a cereal box pinhole viewer, or even a kitchen colander.
Astronomers have also advised against pointing an unfiltered smartphone or digital camera directly at the sun because the intense light could damage the camera sensor.
"The only thing you can look at with the naked eye is a total solar eclipse and there hasn't been one of those on Irish soil since 1724, and there won't be another one visible until September 2090" added Astronomy Ireland's David Moore.
A Perseid meteor shower, as visible in Limavady in 2021
Several hours later, the Perseid meteor shower will reach its peak later in the night, and overnight into Thursday.
A new moon means moonlight should not interfere with viewing, creating favourable conditions if skies remain clear.
The Perseids are produced by tiny pieces of dust and rock left behind by comet Swift-Tuttle.
When the particles enter Earth's atmosphere at high speed, they heat the surrounding air and create brief streaks of light.
The meteors can appear anywhere in the sky, but their path seems to trace back to the constellation Perseus, which rises in the north east and climbs higher during the night.
Observers are advised to find a dark location away from streetlights and to allow at least 10 minutes for their eyes to adjust.
No telescope or binoculars are needed and, under ideal conditions, around 100 meteors an hour could be visible.
More information can be found here.
NI timings, external start/peak/end/percentage obscured :
Armagh – 18:10 – 19:08 – 20:03 – 93.66%
Belfast – 18:10 – 19:08 – 20:03 – 93.05%
Derry – 18:09 – 19:07 – 20:02 – 93.77%
Omagh – 18:10 – 19:08 – 20:03 – 93.97%
ROI Timings, external start/peak/end/percentage obscured –
Cork – 18:15 – 19:13 – 20:08 – 96.43%
Dublin – 18:12 – 19:10 – 20:05 – 93.99%
Galway – 18:12 – 19:10 – 20:06 – 95.95%
Limerick – 18:13 – 19:12 – 20:07 – 96.03%
Skellig Michael – 18:14 – 19:13 – 20:09 – 98.01%
Perseid meteors to light up night sky in one of the year's most active showers
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