There is no novella written by Arthur Eddington titled "Eddington". However, Arthur Eddington did write a science fiction novella called "The Stars in Their Course" (1918) and also "The Internal Constitution of the Stars" (1920) which has some science fiction elements.

You're looking for information on "Eddington free download". Eddington is a science fiction novella by Arthur Eddington, a British astrophysicist, and it's not clear what you're referring to. However, I'll provide you with a few possibilities:

There might be software or tools named "Eddington" available for free download. Can you please provide more context or information about the Eddington software you're looking for?