Hosnian Prime only features briefly in star Wars - The Force Awakens, it has become the new Alderaan, the target for the First Order to demonstrate the power of its Starkiller Base. The planet Hosnian Prime is the seat of the new Senate which is at odds with the aims and targets of the First Order. The planet looks much like Coruscant , the seat of the Old Republic in the sequels from where Palpatine used to control the galaxy from. It is a mutliple planetary system with the main planet being referred to as Prime.
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