How to build your world: Sun & Seasons

Welcome to my World Builder Series.  As a fantasy writer, I build new worlds to tell my stories on.

Since I write large fantasies that span trilogies (yep, I can’t seem to contain my stories within a single novel) I get pretty in-depth with my worlds.


Now despite being a world builder, I am not the sort of writer that includes pages of just world description in huge chunks.

Personally, I find that dull, instead, I build my worlds and then weave them throughout the story, bringing in information gently.

I prefer this way in my writing and my reading. I don’t want extensive descriptions about a world that covers 4 pages right at the start before we even meet a character.

However, since I write over several books, I do a lot of world building because my characters usually end up all over the world at some point.

With this in mind, when you start planning your world you may end up with a lot of World Building content with some of it never making it into your story.  That’s fine – a writer should always have more details than just what’s in the novel.

I’m going to start slow regarding some basics and (obviously) I am going to use the Earth as an example of things to think about when you are creating a world:


The Sun

Our planet has only one Sun which the Earth orbits. This orbit is what defines our year as being 365 days.

Our planet is at the right distance from the Sun to be within the Habitable Zone that allows life to thrive and so the temperature over most of the world is sustainable.

Sun, sunset photo.  Image from Pixabay

The Sun is also our greatest energy source.

Our planet’s axial orbit is what defines our day (24 hours) where half the Earth is in sunlight and the other half in darkness.


The Seasons

The Earth is tilted on its axis. This means that as it goes around the Sun there will be parts of the Earth that are further away from the Sun than others. This is what creates the seasons.

So for example when the North Pole is pointing slightly away from the Sun due to the axial tilt, England will be further away from the Sun than say Australia because the bottom half of the Earth will be pointing towards the Sun.

During this time the Northern hemisphere would be in the season of Winter and the Southern hemisphere would be in the season of Summer.

Illustration of the four seasons as shown with four trees. Image from Pixabay

Six months later when the Earth is on the opposite side of the Sun, halfway through its orbit the Northern hemisphere will be tilted towards the Sun and so will be in Summer while the Southern hemisphere will be tilted away and will experience Winter.

Additionally, for areas near the equator (the ring around the middle of the earth), they are much less affected by this so their weather is quite constant.  This is due to their distance from the Sun at different times of the year.


Your World

So, now that the simple science lesson about the Sun and the Seasons is over, time to think about your world.

  • Does your planet orbit a Sun?
  • Maybe your planet is in the centre and the sun orbits around it?
  • Maybe there is more than one sun? What would this do to your days and nights?
  • Is your planet at a greater distance from the sun than Earth is to our Sun?
  • Are your years longer meaning that winter and summer last a greater length of time?

All this would affect the people and animals living on the planet.

Does your planet have a greater axial tilt? Imagine the Earth tilted completely on its side with its poles pointing towards the Sun, half of the planet would be in the dark for half of the year.

Maybe you won’t need this level of detail for your story, but at the same time look at what can be opened up with just by thinking about these things.

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Suddenly your story could incorporate another aspect, maybe a winter that lasts for ages and leaves the planet so cold for so long that few survive.

Maybe there is a race of beings that have adapted to the total darkness of the tilted planet and retreat below ground when it finally swings into the light.

Just by thinking a little more about the science of your planet and something as basic as days, years and seasons can give you further ideas to work into your story.

More articles on my World Builder Series.

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I hope you found this useful and remember if you like my tutorials why not follow my blog, I upload new posts on Fridays at 18:30 GMT (most of the time) 🙂

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Happy writing

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5 thoughts on “How to build your world: Sun & Seasons

  1. Pingback: How To Build Your World: Landscapes (Pt 1) – Author Ari Meghlen Official Website

  2. MarkSch

    Have you watched Pitch Black?

    This is a perfect movie to see how strange a world is. For 99% of the time, the three suns keep the planet completely lighted. And then for 1 day every 20 years, all the suns perfectly align with the moon around the planet, and the light goes out.

    Once it does, a sub terrain predatory race comes out and eats anything it can find. Their only weakness, sunlight or light in general hurts them. They sense things through echo location. So other life has evolved to shine light which makes them stay away.

    It was an awesome movie. Man vs enviornment.

    1. I have seen that movie and enjoyed the premise. I liked the bit where she was moving the model until it showed what happened with the three suns.

  3. Pingback: How to build your world: Fauna | Ari Meghlen – Writer | Blogger | Bad card player

  4. Pingback: World Building: Water | The official site of Ari Meghlen

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