Where is the Star Atlas?

Excuse me, could you please elaborate on the location of the Star Atlas? Is it a physical object that can be found in a specific place, or is it a metaphorical reference to something else entirely? If it's a tangible item, do you have any information on where it might be housed or stored? And if it's not a physical entity, could you clarify what the Star Atlas represents and how one might access or engage with it? Thank you for your time and assistance.