Jupiter Legacy indeed originated as a comic. The comic provided the foundation for the subsequent adaptations and developments in other forms of media.
I don't have the exact figure at hand. But usually, you can find out by visiting the official website of the comic series or by referring to comprehensive comic book catalogs.
The key elements include the acquisition of powers. They got their powers through some event that's central to the story. Another element is the formation of the first superhero group. And their moral code which they adhered to from the start.
Well, Jupiter's Legacy origin story is quite complex. It begins with a group of individuals who, through some sort of extraordinary event, gain superpowers. They are from an earlier era and have a very traditional view of heroism. Their origin sets the stage for a world where superheroes exist, but also where there are generational differences. The older heroes struggle to adapt to modern times while still trying to uphold their values from when they first got their powers. Their origin story is the foundation for the whole Jupiter's Legacy universe, with all its power dynamics and family relationships.