8 smaller (see below)

Asteroids Series by Design Cast Studios Henderson Kentucky

Asteroid              Asteroid Length (km)   Model Length (cm) Scale

1998 KY26         0.03                             7.5                           1:400 

1999 CASTALIA 1.6                               8                              1:20,000

1994 TOUTATIS 4.6                              11.5                          1:40,000

2003 GOLEVKA 0.69                             7.5                           1:9,000 

2000 KLEOPATRA      217                     7.5                           1:2,900,000

2000 GEOGRAPHOS    5.1                  11.5                          1:44,000

1999 EROS         33                              11.5                          1:290,000

2000 BACCHUS 1.05                              8                             1:13,000

The radar-derived computer models are polyhedra with enough vertices to accommodate the most detailed structure revealed in the images. Rapid prototyping methods (e.g., Kai, Fai, & Chu-Sing 2003), such as selective laser sintering and stereolithography that add and bond materials in layers to form objects, can fabricate a scale model of an asteroid directly from the computer description of its polyhedron. NASA’s Jet Propulsion Laboratory has produced three-dimensional models of seven asteroids (all reported in the peer-reviewed literature), and Design Cast Studios in Henderson, Kentucky, manufactures and sells copies of these models under a JPL licensing agreement. (1)

(1) Bernhard Beck-Winchatz, Steven J. Ostro Using Asteroid Scale Models in Space Science Education for Blind and Visually Impaired Students Astronomy Education Review v. 2, n. 2 (September 2003): 118-126