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Clyde Tombaugh

Planets

5 Facts About… Pluto!

Now we weren’t going to leave out everyone’s favourite dwarf planet, were we?! Small but Mighty! Pluto is named after the Roman god of the Underworld, who coincidentally was also the god of wealth as diamond and other jewels supposedly came from the Underworld. It’s ironic that such a tiny Read more…

By Courtney Allison, 8 months8 months ago
Our Galaxy

Who discovered? The Space Edition

Article written by: Heather Alexander Have you ever had a fun night out with friends, or a lazy day in with loved ones, or even just strolled down the street, and asked the question “Who discovered…?” I am the type of person who asks this question, frequently. Thanks goodness I Read more…

By Armagh Observatory and Planetarium, 3 years3 years ago
Planets

Planet Nine from Outer Space

For those of you that are still bearing the psychological scars from Pluto’s demotion from planet to dwarf planet a decade ago, here is news that may add salt to the wounds. Published recently in the Astronomical Journal, Konstantin Batygin and Mike Brown claim they have found evidence of a Read more…

By Armagh Observatory and Planetarium, 5 years5 years ago
Planets

New Horizons at Pluto

Nine years of waiting are over! New Horizons has been to Pluto! Well done humans!   Pluto has turned out to be slightly bigger than we thought having a diameter of 2370 km. This means Pluto is about 30km larger than Eris, making Pluto the largest known object in the Read more…

By Armagh Observatory and Planetarium, 6 years6 years ago
Planets

New Horizons to Pluto

When Percival Lowell began the search for “Planet X” little did he know the countless arguments he would cause and effectively how these would lead to a seemingly ever changing solar system. “Planet X” was not the believed birthplace of the X-Men for anyone hoping for the possibility of super Read more…

By Armagh Observatory and Planetarium, 6 years6 years ago
UFOs and Fringe Science

Clyde Tombaugh and the Mysterious Satellite

During the mid-19th century reports of strange motions in the orbits of Uranus and Neptune led astronomers, among them Percival Lowell, to think that perhaps another celestial body was having a gravitational effect on their paths through space. Lowell searched for a mysterious ninth planet until his death in 1916. Read more…

By Armagh Observatory and Planetarium, 7 years6 years ago
Image of Lowells_Mars_channels
Planets

Percival Lowell: a man with a mission and vision

Percival Lowell was born into a wealthy Boston family on 13 March 1855. ‘No man is an island’ so like all of us he was a product of his times and class and also like many he rebelled against family traditions and expectations. He is best known for his ‘canals Read more…

By Armagh Observatory and Planetarium, 8 years ago
Moon

Was the 21 September Fireball a Second Moon?

Since before the dawn of history we have admired our planet’s amazing moon and enjoyed its beautiful light.Since the 1600s we have known that some of the other planets of the Solar System have multiple moons.This started some astronomers thinking; perhaps we do have more than one moon!   If Read more…

By Armagh Observatory and Planetarium, 8 years8 years ago
Planets

Pluto and Eris: when is a planet not a planet?

In 2003 astronomers discovered Eris, an object seemingly bigger than Pluto, in the frigid Trans-Neptunian wastes of the Solar System. Rather than becoming the Tenth Planet, Eris led directly to Pluto’s demotion from planetary status! But is this saga over? Martina Redpath has the details. I’m sure most of you Read more…

By Armagh Observatory and Planetarium, 10 years10 years ago
RSS Intergalactic Craic
  • The Safest Dinner Party of 2020
    For the last episode of Season 1, Heather and Courtney suggest their ideal astronomy guests to a dinner party. They cover some of humanity's greatest astronomical achievements as well as discuss some of the rumours surrounding a particular famous astronomer's party behaviour! Need Some Space?
  • Turning Back The Clock - The History of AOP
    Join Heather and Special Guest Host Dr Rok Nezic as they delve into the archives and discuss the history of the Armagh Observatory and Planetarium through their favourite objects. Clocks, books, instruments and rooms, they've got it all covered, and they have a bit of craic along the way.
  • Vampires, Zombies and... Bowties? Oh My!
    This week Intergalactic Craic has some added spook for your Autumn. Vampire stars, zombie stars and spooky nebulae will all be discussed by Courtney and Heather. Need Some Space?
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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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