Caoimhín's Content

Astronomical and Educational content, in English and Irish

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  • A Lunar Calendar and a Solar Calendar: Easter and the Computus Paschalis

    Today, we are going to look a little bit into the past and then a lot into the past. We will start by going back just a couple of days to the 20th of April. This was Easter Sunday this year and some of you may know that Easter Sunday varies a lot between different

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  • Late April Constellations

    Today, we are going to take a look at the late April night sky. We’re going to look at the general features of the night sky, the planets, the stars, the constellations and how they look now that we’re coming into the later part of April. Speaking of coming into April, we are in “summer

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  • Putting Comet 2025 F2 (SWAN) in Stellarium

    Today, we are going to be taking a look for and at a new comet. The comet in question was discovered quite recently, just last month in March. The comet is called C/2025 F2 (SWAN). That’s C/ for “comet” and 2025 because it was discovered in 2025, that part is nice and easy of course.

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  • The Galactic Equator, The Ecliptic and Angular Measurment

    Today, we are going to be taking a look at the galaxy, its equator, the ecliptic of our solar system and angles. As disparate as those topics sound, they do all flow together. We are going to begin by taking a look at our galaxy, the Milky Way. It does require dark skies, but just

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  • The April Lyrids

    Today we are going to look just a little further ahead into April to take a look at the Lyrid meteor shower. The Lyrid with meteor shower is going to be peaking pretty late in April, the 22nd/23rd, so we’re going to have to push pretty late to get to the peak. The Lyrids do

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  • Early Morning Planets: Better from Elsewhere

    Happy April Fool’s Day everyone, don’t worry I won’t be pulling any pranks. Today we are going to take a look at Mercury, Saturn and Venus in the morning. In a recent piece I mentioned that Mercury is coming to its greatest elongation and how that wouldn’t really be visible for us here in Ireland.

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  • The March Solar Eclipse

    Today we are going to take a closer look at the partial solar eclipse that we will be able to see from here in Ireland on Saturday the 29th of March. We will begin looking at the whole sky for midday on Saturday the 29th of March. The eclipse will have just finished at this

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  • The Night Sky in April: A Quick Look Ahead

    Today we are going to take a quick look ahead into the coming month of April. April is coming up, and there aren’t too many particularly crazy events happening in April. It will be after the solar eclipse that’s coming up at the end of this month, which I will cover before the end of

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  • The Spring Equinox and a View from Mercury

    Today we are going to talk about the equinox. The date of posting, the 20th, is the equinox, so we are coming through the equinox right now. This is the vernal equinox or the spring equinox for the northern hemisphere and the autumnal equinox or the autumn equinox for the Southern Hemisphere. It could be

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  • Double Venus!

    Today we are going to be looking at Venus. In a recent video, when we were taking an overview of March, I pointed out Venus visible at sunset in the early part of March, really close to Mercury, and once we came around to the end of March I showed Venus at sunrise after coming

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