A fireball has blazed across Irish skies for the second time in ten days.

Astronomy Ireland says a piece of an asteroid or comet entered the Earth's atmosphere over Ireland and blew apart between 6am and 7am.

The organisation says it has already received a number of reports of the event and is appealing to the public to report any sightings on www.astronomy.ie/fireball.

‘Large fireballs can explode with the power of an atomic bomb when they burst tens of kilometres above our heads,’ said David Moore, Chairman of Astronomy Ireland.

‘Fragments that survive the fall to the ground can fetch a keen meteorite hunter hundreds - if not thousands - of euro, if sold'.

Astronomy Ireland says a fireball also appeared in the moonlit sky on 18 January.