Armagh Observatory is marking a very special meteorological milestone as the institute celebrates 230 years of continuous weather observation. The unbroken tradition of handwritten data makes it the ...

One of Ireland’s oldest astronomical institutions is continuing its centuries-old tradition of observing the winter solstice. It comes this year as the historic Armagh Observatory is part of a bid for ...

In what is being called a "planet parade," five planets will be aligned in their natural order from the Sun with the partial Moon joining them before sunrise on June 24, the Armagh Observatory and ...

Born in Leiden in 1938, Dr de Groot completed his PhD at the University of Utrecht in 1969, with a thesis on the famous variable star P Cygni. He went on to serve as Resident Astronomer and Aid to the ...