The International Space Station (ISS) will pass across Irish skies over the next 12 nights.
The ISS has six astronauts on board, and will cross the sky over Ireland over the coming days until December 5th.
"It is an incredible sight to see the International Space Station blazing across Irish skies, so we are urging everyone in Ireland to go out and watch this amazing spectacle," editor of Astronomy Ireland David Moore said.
He added that the ISS is 10 to 100 times brighter than the brightest star in the sky, "so it is plainly, indeed spectacularly, visible to the naked eye".
Due to its brightness, Mr Moore said the ISS is easily visible even from the centre of brightly lit cities.
The times to see the ISS in the sky will be posted on Astronomy Ireland's social media pages each day before sunset.