On October 5, 1923, Edwin Hubble identified the first Cepheid variable in M31, the Andromeda Galaxy. This proved that the Andromeda nebula was not part of the Milky Way and paved the way for measuring the expansion of the Universe. Cepheid variables are luminous yellow stars which pulsate in brightness Read more…
Solving a 40 year cosmic mystery about interstellar gas only to uncover an even deeper one. Author: Michael Burton, Director of the Armagh Observatory and Planetarium Hydrogen molecules have been found in clouds of shocked gas in interstellar space that are at temperatures of around 5,000 degrees. This is much Read more…
Want to know more detail about the research described in this Astronotes article on ultra-hot hydrogen molecules? Here are five papers spanning more than four decades of research that helped lead to this discovery of ultra-hot molecular hydrogen: Velocity profiles in the 2.1 micron molecular hydrogen line emission line in the Orion Molecular Cloud Read more…
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…
Burcu Gunay, Ege University, Turkey We have developed a new method to look for carbon compounds in space, akin to prospecting for oil on Earth. Between the stars lie vast amounts of interstellar gas and dust, spread thinly throughout our Galaxy. The dust can contain compounds of carbon. When it Read more…
NGC stands for the New General Catalogue of Nebulae and Clusters of Stars, which is an astronomical catalogue of deep sky objects and was compiled in 1888 by the 4th director of the Armagh Observatory John Dreyer. To this day the NGC catalogue is still used by Astronomers all over the world and remains one of our many claims to fame! The catalogue contains 7840 objects Read more…
So, it’s been a weird spring so far this year, with most people working from home and stuck in their houses. But we’ve been getting some good weather over the last few weeks, allowing us to get out for our daily exercise, or even just into the garden. Well, now might Read more…
October is here! It is one of our favourite months as there is so much more to see in the sky and the nights are getting deliciously darker. One thing to remember when you are stargazing is to wrap up warm when you venture outside. The nights are getting much colder, and with some of the best stargazing occurring in the early hours of the morning, we don’t want anyone catching a chill. Thermals and a thermos filled with hot chocolate or coffee will do the trick. Also don’t forget that we will be starting our Star Tracker evenings in the coming months!
Article by Michael Burton, Director of the Armagh Observatory and Planetarium NASA’s Curiosity Mars rover recently discovered organic molecules in 3 billion year old Martian rocks. This material may have been delivered by meteorites and comets to the young planet. Deep space is full of organic matter. Organic matter contains Read more…
Article by: Holly Preece, PhD student at the Armagh Observatory and Planetarium NASA’s Hubble space telescope was launched on 24th April 1990. It was the first optical space telescope to be launched into orbit and has been one of the most productive scientific instruments ever built. It orbits the Earth Read more…
Some good news folks! If you fancy a few free ‘sparklers’ to get you celebrating, you could fill a bag with the number of fabulous looking stars that will appear their prettiest again this month against the darkest seasonal drape of the year as it stretches in all directions above Read more…
October is over, and November is now upon us. The days are definitely getting colder, the night are definitely longer, which means the time for gazing into the night sky is now! One of the best things about November is the fact that there is not one, but two meteor Read more…
A team of scientists in Australia are scanning the Universe for signals from extraterrestrial life. Professor Matthew Bailes, based at Swinburne University in Melbourne, is the lead scientist in this project funded by Russian billionaire Yuri Milner. Milner has donated $100 million and has the support of Professor Stephen Hawking. Read more…
During our school days, children in the developing and developed world could not even dream about getting a chance to look through a professional telescope; forget about playing with it for real observations! Those days, only the best professional astronomers/astrophysicists had access to such telescopic sites and networks. However one Read more…
Michael Burton, Director, AOP On 27th July 2017, the RoI Minister John Halligan switched on I-LOFAR telescope, the largest radio telescope in the world, at Birr Castle in Co. Offaly. The Armagh Observatory and Planetarium is a member of the 8 institutions across the island of Ireland that came together to build I-LOFAR. Read more…
Peer deep into the constellation Sagittarius and you will find a spectacular young star cluster and its associated stellar nursery. These are M8 and the Lagoon Nebula. More than 4300 light years (1320 parsecs) from the Solar System, this is an active star-forming region. Billions of years ago our Read more…
On Saturday 22 July 2013, I took a look around the summer night sky through the eyepieces of the Planetarium’s 12 inch Dobsonian telescope. It was a beautiful clear evening. What was there to see? Here are some images to give you an idea. Closest and brightest (a little too Read more…
A new image from the European southern Observatory’s Visible and Infrared Survey Telescope for Astronomy (VISTA) telescope reveals the glowing clouds of gas and filaments of dust surrounding hot young stars in the stellar nursery known as NGC 6357. Infrared observations like this can reveal features that cannot be seen Read more…
This image of the reflection nebula Messier 78 (NGC 2068) includes the soft glow of submillimetre-wavelength (infra red) radiation from clouds of interstellar dust grains running through the nebula.Dense clouds of gas and dust like this are the birthplaces of new stars. M78 is found in Orion, and appropriately Read more…
Beautiful colour images of nebulae grace astronomy books and websites and have spread to mainstream culture. They are now familar to the public but what are these gaudy celestial spectacles? So what is a nebula? Nebula is latin for ‘cloud’ so it is the word astronomers use to call Read more…
A new image of the Omega Nebula reveals amazing detail in a cosmic landscape of gas clouds, dust and newborn stars. Captured by the Very Large Telescope (VLT) at the European Southern Observatory, this is one of the sharpest views of this stellar birthplace ever taken from Earth’s surface. Read more…
The debris from a vast cosmic explosion, the Crab Nebula in Taurus is a well-known spectacle. But what is it and how was it formed? On 4 July 1054 AD Yang Wei-T’e (?-?), astronomer to the Chinese emperor, carefully recorded a ‘guest star’ in the constellation of Taurus. Yang Read more…
Lying more than 4000 light years from our Solar System, the Lagoon Nebula (M8) is a place where new stars are forming. Researchers at the multinational Gemini South telescope are uncovering its secrets. This dazzling portrait of a section of the Lagoon Nebula (M8) was captured by astronomers Julia Arias Read more…
NGC 6302 is a beautiful example of a planetary nebula formed when a bloated red giant star transformed into a tiny white dwarf, belching about half its mass into space in the process. This dramatic image looks like some vast cosmic eruption, and that impression is entirely correct. We’re looking Read more…
Cepheid variables are massive, pulsating stars, valued by astronomers for the precise link between their brightness and steady pulsation. Let’s look at the history of Cepheid variables and how recent discoveries about these stars shatter established theories of stellar evolution. Cepheid variable stars have been known since the 18th Read more…
Gorgeous! Spectacular! Awesome! What else can I say about this stunning Turneresque image of the Lagoon Nebula (M8)? A typical stellar nursery, M8 lies about 4300 light years (1320 parsecs) from Earth in the constellation Sagittarius. About a hundred light years (31 parsecs) wide, it is actually several times as Read more…
It is difficult to look at this Hubble Space Telescope image of the nebula NGC 2467 without thinking about what it would be like to fly through it. It is easy to imagine floating through a beautiful softly glowing mist, something like the Mutara Nebula, scene of Kirk and Spock’s Read more…
That amazing instrument, the Hubble Space Telescope (HST), has just celebrated its twentieth anniversary since it was placed in orbit. Since then, (after a rocky start, remember that dodgy mirror?) it has revolutionised not only what we know about cosmology, star formation, exoplanets and so on, but also how we Read more…