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Moon

Moon

Exploring Jupiter’s Icy Moons

Humans have been looking up to the night sky wondering and discovering what lies beyond for thousands of years.We have detected super massive black holes, discovered distant galaxies and located extra-solar planets outside of our Solar System.Despite this we have not discovered any other life forms beyond our own planet.Perhaps Read more…

By Armagh Observatory and Planetarium, 7 years1 year ago
image of the Moon in Daytime
Moon

The Moon in the Daytime

I was visiting the Tall Ships event in Dublin recently when I noticed something strange in the light blue daytime sky!  Overlooking the River Liffey I could see something that looked like the Moon, but the Sun was still shining, so it couldn’t have been the Moon – or was Read more…

By Armagh Observatory and Planetarium, 7 years7 years ago
Moon

A Rolling Stone on the Moon: Image of the Month

Once, in complete silence, a large boulder rolled down a slope on the central peak of the Moon’s Schiller crater. This rock is about 9m (30ft) across, meaning that it would fit neatly inside Armagh Planetarium’s 11 m wide Digital Theatre. The Moon’s surface has been to all intents and Read more…

By Armagh Observatory and Planetarium, 8 years5 years ago
Moon

Image of the Month: Helene

Helene is a tiny moon of Saturn that shares an orbit with the much larger moon Dione. Helene reposes at a gravitationally stable position called a Lagrange point. Helene orbits Saturn ahead of Dione, and viewed from above the centres of Dione, Saturn and Helene form a vast equilateral triangle. Read more…

By Armagh Observatory and Planetarium, 8 years ago
Moon

Image of the Month: Tycho Crater’s spectacular central peak

The peak at the centre of Tycho Crater on our Moon has been imaged by the Lunar Reconnaissance Orbiter spacecraft. Let’s take a look at this spectacular mountain of the Moon. One of the best-known lunar craters, Tycho is not especially large at some 85 km across. However it is Read more…

By Armagh Observatory and Planetarium, 8 years8 years ago
Moon

Phobos: ESA’s daring encounters

  In March 2010 that superb but underappreciated probe Mars Express made a series of very close passes by the Martian moon Phobos. On one occasion it came as close as 107 km to the tiny world’s surface. The purpose of these encounters was to determine information on Phobos’ interior Read more…

By Armagh Observatory and Planetarium, 9 years8 years ago

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Welcome to Astronotes

Hello and welcome to Astronotes, the Armagh Observatory and Planetarium’s official blog. Here you will find the latest news and views from all those who work in our organisation, from the fascinating worlds of astronomy and space exploration. We hope you will come here to learn what is hot and exciting, profound or even weird from worlds beyond ours . So that's the introduction out of the way, now on with the Universe!

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