Caoimhín's Content

Astronomical and Educational content, in English and Irish

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  • The Southern Hemisphere’s Summer Sky

    Winter may already feels like it’s been going on a while, but the coldest part should still be on the way as of the date of posting. The weather gets colder in winter, partly because of the angle at which the Sun’s rays are hitting us (it’s a much shallower angle, less direct), but also…

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  • Mercury, its Greatest Elongation and More!

    Today, the smallest planet is getting a long video dedicated all to it, long for my channel so far at least. Mercury will be coming up on its Greatest Western Elongation soon, so we will be able to see Mercury in the West in the morning, if you’ve stuck around a few of my videos…

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  • An Overview of 2024, Planets and Meteors Showers

    A whole new year is beginning, and we will have plenty to see and look at! Of course we’ll be taking a close look at each month as it comes, and we’ll pay special attention to the big events of the year, such as eclipses, as they come. In this video, we’re going to look…

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  • A Preview of January 2024 and some Teasers for the Upcoming Year

    In this video we look a little further into the New Year, beyond New Year’s Day into January 2024 itself. Most things will remain pretty much the same, many parts of the sky change slowly even from month to month. Saturn is still visible in the evening, but very much only the early evening, along…

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  • A Preview of New Year’s and What’s in the Sky at Midnight

    New Year’s is almost upon us and it’s good to know what to look out for if you’re out under the stars. As it is tradition among many to stay up till midnight on as we go from one year to the next, it’s a perfect night to have a look at the stars and…

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  • Spotting Satellites and the International Space Station

    We are coming up to the 25th of December, Christmas for many people, and so that is the date used mostly in this video, but the topic of the video is satellites. Satellites can be surprisingly easy to spot once you know how, and although they are artificial, unlike most subjects of my videos, they…

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  • Exoplanets and Where to Find Them

    Firstly, this video has a terrible visual artifact around the webcam. I believe I know what went wrong and should be able to prevent it in future videos, but I’d rather post something than skip a week, so here we are. I have updated the version of Stellarium that I am using. Up until recently,…

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  • An Oíche is Faide agus Pláinéid timpeal Réaltaí eile

    Welcome back to another Irish language video about astronomy, I endeavor to put out at least one Irish language video a month on this channel/website, and given the month that we are in, this one looks first at the longest night. In Irish, the month of December is “mí na Nollag” and Christmas is “Oíche…

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  • Minor Objects, Meteors, Asteroids and a Dwarf Planet in the Asteroid Belt!

    The Geminid meteor shower is upon us, or very nearly at least. I mentioned the Geminids in our overview of December, and there is a whole video dedicated to meteor showers as well. However, unlike many other meteor showers, which are caused by comets, this one is caused by an asteroid called Phaethon or 3200…

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  • A Stellarium Feature, Telescopes, Binoculars and Oculars

    All of the videos I make use Stellarium, we’ve seen how it can transport you through time and to other planets, and we’re going to play around with one of its features in this video, the ability to simulate the view from a telescope. Telescopes are simple in principle but of course the details can…

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