Since the other posters covered the basics:
Yeah, stars can really slow you down, but don't forget to use it to your advantage. If you see an enemy fleet in a star's well, jump a few ships in to distract them. The ship AI should automatically make the fleet follow you, which will take forever next to a star. You can use the opportunity to get the jump on them either there (because the fleet is now spread out) or on another planet (since you can pull them around the star and it'll take a while to get back).
...So yeah, that mini-strategy's a little limited in scope, butI think it's still viable.
Said post has been reported. It's a new userID and his only post, so it's probably a bot. I seem to remember seeing a very similar post before, though.