Short answers, pulled from the story.
The Sweden Solar System opened its doors on the 19th of February 1989. Nils Brenning and Gösta Gahm launched this massive project from their positions at the Royal Institute of Technology and Stockholm University respectively.
Mercury sits just outside the Stockholm City Museum with a diameter of twenty-five centimeters. Peter Varhelyi crafted the small metallic sphere that marks Mercury's position.
A previous version by Daniel Oberti shattered around the 11th of June 2011 after falling during transit celebrations. The current Venus resides inside Vetenskapens hus at KTH Royal Institute of Technology measuring sixty-two centimeters across.
Jupiter occupies space inside the Clarion Hotel at Stockholm Arlanda Airport spanning seven point three meters. It now functions as a ring light above a lobby replacing earlier flower decorations.
Theresa Berg crafted the golden Eris model inspired by Greek goddess quarrels over a golden apple. Eris reaches thirteen centimeters and features golden material inspired by Greek mythology at Umeå Arts Campus.