Where is Kerwan on Ceres?
Kerwan is centered at 10.77° south, 123.99° east, just south of the equator. The International Astronomical Union named it in 2015 after Kerwan, the Hopi spirit of the sprouting maize. A smaller crater, Insitor, 26 kilometers across, lies almost exactly at its center.
Why is Kerwan so flat?
Because it has relaxed. NASA calls the largest crater on Ceres relaxed: over hundreds of millions of years its sharp features have softened, and its overall shape looks something like a pancake. NASA puts its age at 550 to 750 million years.
What does Kerwan look like as a 3D print?
A broad, shallow basin. Its entry frames about 360 kilometers, so on a model 200 millimeters across the relief in that view comes out at about 6 millimeters at true scale and about 12 at 2x; the generator suggests more exaggeration for any region this wide. The low rim, the smoother floor and Insitor in its middle all print; the younger craters on top of it stand out most.
What is OrbitStudio?
OrbitStudio turns real elevation data into 3D-printable models. You pick a region of Ceres on a globe or a flat map, choose a jigsaw puzzle or a solid ornament, and get ready-to-print files with terrain and borders already separated and colored. No CAD, no mesh repair. The heights come from the shape model NASA's Jet Propulsion Laboratory made from Dawn's images, on a 100-meter grid.
Trying it is free and needs no account: pick a region, generate it and turn it around in 3D. Downloading the model — STL files and pre-colored 3MF files for Bambu Studio or OrcaSlicer — takes a Plus or Merchant plan, or one credit from a pass. The generator covers the Moon, Mars, Mercury, Venus, Pluto and Charon too.
Other landmarks
The night sky, too
OrbitStudio Sky, the night-sky tool, turns the sky over any place, on any date from 1900 to 2100, into a 3D-printable star map. Its STL is free.