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Image of Crab Nebula
Milky Way

January Night Sky 2023

So, party season is over and we’re looking towards a long, cold January before the weather starts to heat up again. However, January is a great time to go stargazing as the nights are long and we can start our lookout in the late afternoon. Not to mention that the Read more…

By Anna Taylor, 3 monthsJanuary 9, 2023 ago
Latest News

Armagh astronomer discovers that white dwarfs become magnetic as they get older

At least one out of four white dwarfs will end its life as a magnetic star! At the end of their life, most of the stars shrink in size to the dimension of a small planet, a stage of the stellar evolution which is called “white dwarf”. In a new Read more…

By Sinead Mackle, 1 year ago
Solar System

Why is Jupiter not a Star?!

Simple answer is Jupiter doesn’t have enough mass to fuse hydrogen into helium.  But you didn’t come here for the simple answer!  This process of turning hydrogen into helium is known as nuclear fusion and it is the energy source that powers the sun and most other stars. What drives nuclear fusion? For nuclei Read more…

By Helen McLoughlin, 2 yearsApril 16, 2021 ago
Latest News

Hot stars are plagued by giant magnetic spots

Astronomers using European Southern Observatory (ESO) telescopes have discovered giant spots on the surface of extremely hot stars hidden in stellar clusters. Not only are these stars plagued by magnetic spots, some also experience superflare events, explosions of energy several million times more energetic than similar eruptions on the Sun. Read more…

By Sinead Mackle, 3 yearsJune 3, 2020 ago
Press Releases

Starry-Eyed Advice for Gazing from Your Garden

Five things to look for during International Dark Sky Week With a remarkable drop in air-pollution during lockdown and warm weather forecasts, the astronomy experts at Armagh Observatory and Planetarium have shared what twinkling treats you can spot in the sky during International Dark Sky Week. Step out to the Read more…

By Sinead Mackle, 3 yearsApril 22, 2020 ago
Human Exploration

The IAU: An Introduction

To kick off our new weekly series on the Technical Applications of Astronomy to Society, inspired by a recent publication of the IAU (The International Astronomical Union), our Director Michael Burton has written a brief summary of the history and purpose of the IAU, as well as outlining some of Read more…

By Michael Burton, 4 yearsMay 2, 2019 ago
Other Galaxies

How Iron Keeps Us Safe

Have you ever been worried about the impact of an asteroid wiping out human life? Well, I have some disturbing news for you: there is another possibility involving the explosion of a massive star that gives rise to a gamma-ray burst (called by astronomers simply a GRB), when the star ends its life producing a black hole.

By Armagh Observatory and Planetarium, 5 yearsSeptember 17, 2018 ago
Monthly Sky Notes

What’s up in the Sky this September

This September is a relatively uneventful month (astronomy-wise). Few visible planets, quiet Sun and overall a very poor month for meteor showers.

By Armagh Observatory and Planetarium, 5 years ago
Human Exploration

10 things we used to believe about Space

Space is forever changing. Here is a list of 10 things we used to believe about Space.

By Armagh Observatory and Planetarium, 5 yearsSeptember 3, 2018 ago
Other Galaxies

Star Wars: A look at the Science

Star Wars, the very name brings up images of childhoods spent in front of a TV or cinema screen, absorbing up stories of a galaxy far, far away. For many, it was the thing to ignite their passion for storytelling, and for others it was the thing that ignited their Read more…

By Armagh Observatory and Planetarium, 5 yearsDecember 15, 2017 ago

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RSS Intergalactic Craic
  • S3Ep2 - Wee Bitta Craic: Bout Ye Zuri?
    In the latest Wee Bitta Craic episode, Alice and Ethan ask Zuri all about how she came to be at Armagh Observatory and Planetarium doing her PhD. Find out more about Zuri's journey to get to where she is today, and laugh along as the guys have quality banter. If you love listening to our […]
  • S3Ep1 - Wee Bitta Craic: Welcome Ethan, Alice and Zuri!
    Want a Wee Bitta Craic? Then say hello to some of our PhD students, Ethan, Alice and Zuri. They will be hosting their own Wee Bitta Craic episodes and will give you an insight into the life of a PhD students here at AOP!
  • Season 3 - What's the craic?
    What's the Craic? Intergalactic Craic is back and it's shaking things up! Join Heather and her brand new co-host to find out more!
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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