Uncharted star

"That star is not supposed to be here"

- Nicholas Rush

This star wasn't detected and charted by Stargate seeding ship. When Destiny flied near it, gravity of the star disrupted its FTL engine, causing ship to drop out of FTL and spend next month performing maneuver around it to get back on course.

There is only one planet orbiting this star. Nicholas Rush speculated that both star and planet was created artificially by very advanced race.