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Apostolos Christou

Earth

A Halloween Meteor Shower Special: The Taurid Swarm

At certain times of the year, the Earth passes through streams of dust left behind by comets, leading to a natural fireworks display: a meteor shower. One of the best-known is the August Perseids; at the peak of the shower, one can see about 100 meteors per hour on a Read more…

By Apostolos Christou, 3 monthsOctober 28, 2022 ago
Earth

Did the young Earth have company?

Written by Apostolos Christou As far as astronomers know, the Earth is alone in its annual trek round the Sun – that is, apart from its natural satellite: the Moon. But our current understanding of how the solar system formed suggests it may not have been always so. For instance, Read more…

By Apostolos Christou, 6 monthsAugust 8, 2022 ago
Other Galaxies

The Unluckiest Astronomer in History

Article by Ed Snowdon Whether you are a researcher gathering data, or a hobbyist taking photos from your back garden, astronomy has always required a certain amount of good luck. Instruments can be uncooperative, data can be lost or damaged, and of course there’s the ever-present threat of bad weather. Read more…

By Apostolos Christou, 6 monthsAugust 1, 2022 ago
Latest News

Armagh astronomers at UK National Astronomy Meeting

Written by Gavin Ramsay A number of Armagh astronomers travelled this week to the University of Warwick in England to take part in the first `in-person’ UK National Astronomy Meeting since 2019. Over 800 people participated either in person or remotely. For many PhD students it was the first big Read more…

By Apostolos Christou, 7 monthsJuly 16, 2022 ago
Our Galaxy

Space, Time and Gravity

Written by Gautham Sabhahit Over a century ago, Albert Einstein formulated his general theory of relativity (GR, also called Einstein’s theory of gravitation) describing the motion of objects in space and time under the influence of nearby matter and radiation. The theory formulated ‘gravitational force’ as a geometric property of Read more…

By Apostolos Christou, 7 monthsJuly 5, 2022 ago
Other Galaxies

Vera Rubin, the Vera Rubin Telescope and the Vera Rubin Prize

Ask any number of astronomers who they believe to be the most influential figures in 20th century astronomy and chances are you will hear the name of Vera Rubin being uttered a few times. Recipient of numerous awards and accolades including the Royal Astronomical Society’s Gold Medal, Vera Rubin (nee Read more…

By Apostolos Christou, 8 monthsMay 25, 2022 ago
Planets

The Geminid meteor shower: Tears of the Sun God

The month of December offers us the most intense meteor shower of the year. These are the Geminids, so-called because they appear to emanate from the constellation of Gemini the Twins. At the peak of the shower, over 120 meteors – two meteors every minute – can be spotted under Read more…

By Apostolos Christou, 1 yearDecember 9, 2021 ago
Moon

Friday 19 November 2021: Catch a lunar eclipse on your way to work

Armagh Observatory and Planetarium reports that, if skies are clear on the morning of 19th November 2021, sky-watchers will witness a partial eclipse of the Moon. The eclipse begins at 0720 am Greenwich Mean Time (GMT) when the Moon is only 5 deg above the NW horizon. At that time Read more…

By Apostolos Christou, 1 yearNovember 16, 2021 ago
Comets and Asteroids

Halley meteor shower due to peak this week

Orionids are debris from comet Halley that graced Earth’s skies in 1986 and is expected to return to the vicinity of the Sun in 2061. Orionids tend to be quite fast, hitting the Earth’s atmosphere at 66 km /sec. This is fast enough to cross the Atlantic Ocean in about Read more…

By Apostolos Christou, 1 yearOctober 19, 2021 ago
Latest News

All-sky camera at AOP captures the 2021 Perseids

by Apostolos Christou During the past week, Earth passed through the core of the Perseid meteor shower. The peak of the shower – when up to 100 Perseids could be observed under clear conditions away from light pollution – occurred between the 11th and 13th of August. Three bright Perseids Read more…

By Apostolos Christou, 1 yearAugust 16, 2021 ago

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RSS Intergalactic Craic
  • 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!
  • Space is Cloudy, Who Knew? Featuring Kerem Çubuk
    This week Heather and Courtney interview Armagh Observatory PhD Candidate Kerem Çubuk on his area of research - molecular clouds! Turns out we can't escape the cloudy conditions, even millions of lightyears away.  Kerem and his colleagues also have a Youtube Channel dedicated to science communication in Turkish. To find out more, visit ahtapot.club 
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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