Jupiter Legacy indeed originated as a comic. The comic provided the foundation for the subsequent adaptations and developments in other forms of media.
Fiction often portrays Jupiter in a rather spectacular light. Many stories play up its colossal size. It's not uncommon to see Jupiter as a sort of 'big bad' in certain fictional universes, where its gravitational forces can disrupt spaceships or even entire planetary systems. There are also fictions where Jupiter is seen as a source of power or a key to unlocking some sort of universal mystery. Writers might describe its bands of color and its many moons in great detail, creating a vivid and often somewhat alien image of the planet.
I'm not entirely sure specifically what 'Jupiter Visual Novel' is about as there could be many different ones with that name. It might be a story - perhaps a science - fiction one given the name 'Jupiter', or it could be a romance set in a fictional world related to Jupiter in some way.
Jupiter Jones is a character in science fiction. Usually, she is a key figure in the story she belongs to, with her own set of characteristics and a role to play in the overall plot.
I'm not sure specifically what 'Jupiter Graphic Novel' is about as there could be many different stories within it. It might be related to science - fiction themes given the name 'Jupiter', perhaps about adventures on Jupiter or something related to its exploration.
Definitely, the idea of 'Jupiter the star' is a fake story. Jupiter is a significant part of our solar system as a planet. Stars have a different formation process. Stars form from large clouds of gas and dust that collapse under their own gravity and start nuclear fusion. Jupiter formed in a different way as part of the planetary formation in the solar system. It has a different composition and structure compared to a star. It is mainly composed of hydrogen and helium, like a star, but it doesn't have the internal processes that make a star shine and generate the huge amounts of energy that stars do.