Hiding a Gas Giant

I have a habitable Earth-like moon that orbits a gas giant.

This moon is inhabited by a pre-medieval civilisation that has spread out across just one continent.

The inhabitants of this civilisation are unaware that the moon they are on is orbiting a gas giant.

I am guessing this is possible because the moon's rotation is in sync with its orbit around the gas giant, so the inhabitants always have the moon (or ground) between them and the gas giant. Similar to being on the dark side of our moon and not being able to see the planet Earth.

My 2 questions are:

• Without actually going around to the other side of the moon and seeing the gas giant for themselves, how could the civilization figure out that they were orbiting a gas giant, and what level of technology/understanding would be required to prove this?

• I am guessing that seasons on such a moon would be extreme to say the least. Are there any alterations I can make to this situation to have less extreme seasons, whilst still keeping the gas giant hidden from the civilization?

posted about 8 years ago

Jimmery‭

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