This STL file of is split into two hemispheres suitable for printing and assembly into a model of the asteroid Eros. Eros has a length of approximately 34 km. Printed at it's default size (5cm long) this model is at an approximate scale of 680,000 to one ( 1 cm = 6.8 km ) Data Credit : Gaskell, R.W., Gaskell Eros Shape Model V1.0. NEAR-A-MSI-5-EROSSHAPE-V1.0. NASA Planetary Data System, 2008.