[Space] How much does a Gas Giant heat it's moons?

[Daigoro]

Originally Posted by Anthony

They also occasionally block sunlight from the other, so it's likely a wash, and in any case most of the time the effect is negligible.

Not so often though, unless they're orbiting perfectly flatly in the equatorial plane. Look at how uncommon eclipses are for the Earth and moon to block sunlight from each other.

For a moon around a gas giant, however, it is more likely. You'd have to figure out the axial tilt of the gas giant and then the semi-major axis and eccentricity inclination of the moon's orbit to see how long it spends under occultation.