shiny hyperion vanguard aquired, "cool i'll kit it out" (cue dockage at boron equipment dock) buy,buy,buy, (undock) bang...
The ship debris formally known as hyperion, game over.
A well known big ship issue with certain stations and docks or when other big ships are parked next door. Give the ship a command to undock under the AI (eg idle, fly to, dock at, etc) and take back personal command when clear of the station and you should be fine. See this thread.
Actually saying what game and version you are playing is always useful too.