Warning- Never look at the sun directly with your eyes, optical equipment or camera without adequate filters. Every year the Earth orbits the Sun and every month the Moon orbits the Earth. Every now and then their paths through the sky appear to cross. When this happens, the Moon appears to pass in front ofContinue reading “Solar Eclipse 10th June 2021”
It never truly gets dark this month. For the sky to be completely dark, the Sun must get at least 18 degrees below the horizon and this never happens in June from Ireland. The summer solstice occurs this year on 21st June. The summer solstice is the longest day of the year, in terms ofContinue reading “What Can I See in the Sky in June 2021?”
You’ve probably heard the story of a scientist sitting under an apple tree. Suddenly an apple falls and whacks him in the head. Just then he formulates the theory of gravity. It may not have happened just like that, but the scientist featured in the story is Sir Isaac Newton. He was born on 4thContinue reading “Sir Isaac Newton”
This month sees the evenings grow longer which means less hours of darkness. However, as we are entering the summer, evenings are also getting warmer which makes it more comfortable to go out and enjoy the sky. This month, the highlight will be Venus which is returning to the evening sky and will be visibleContinue reading “What to See in the Sky in May 2021?”
If one is lucky enough to live in a rural location you can look up on a clear night and see the Andromeda Galaxy which is 2.5 million lightyears away. That isn’t true for those that live in, or close to a town, village or city. From the heart of a city, one would beContinue reading “What is Light Pollution and Why Should You Care?”
We are now in the month of April and the spring equinox is behind us. The clocks have gone forward and the Sun now sets at 20.00 at that start of the month. This still gives loads of time to get out and observe but also means we can enjoy longer evenings. The last twoContinue reading “What Can I See in the Sky in April 2021?”
How many kids have you heard say, “When I grow up I want to be an astronaut!”? Maybe you said it yourself. Well now could be your chance, as the European Space Agency (ESA) have announced that they are recruiting the next group to Join European Astronaut Corps. This is the first time since 2008Continue reading “Want to be an Astronaut?”
The idea of a space based telescope is not new. Lyman Spitzer first suggested the idea of a telescope in space in 1946. This was 11 years before the first satellite, Sputnik 1, was launched by the Soviet Union. His idea suggested that a telescope in space would not be impacted by the atmosphere ofContinue reading “Space Based Telescopes”
The month of March is upon us which means it’s officially spring. The spring equinox occurs on 20th March. This is the time when the Sun crosses the celestial equator and the length of the day and night are equal. After this the nights will be shorter than the days. In Ireland, the clocks alsoContinue reading “What Can I See in the Sky in March 2021?”
Last week I wrote about optical ground based telescopes. In this post we learned about the electromagnetic spectrum and how visible light makes up only part of the spectrum. We also learned that all parts of the spectrum are useful in different ways for astronomy. In this article I am going to focus on theContinue reading “Radio Telescopes”
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