I did not render this model, I just resize, soften and simplified it with Windows 3D Builder to share the same scale as other objects. The original file is from the collection of asteroid radar detections of the PDS site.
The file's names explained:
name_1_x_10_y.stl is 1 : x * 10
y. So _1_6_10_7 is 1:600000000 or one in 60 million.
4769 Castalia
Castalia was the first asteroid which shape was modeled from radar data, two weeks after its discovery in August 1989. It was also the first body known to be a contact binary; although several minor planets discovered before Castalia, were found later to be (or likely to be) contact binaries, like
Kleopatra or
Ida.
- Type: Near Earth Asteroid. Potentially Hazardous Object
- Orbit: Sun. Apollo group.
- Orbital period: 400.46 d.
- Rotational period: 4 h 5 min 42 s.
- Composition: Contact binary.
- Density: ?
- Dimensions: 1.8 km × 0.8 km
- Model scale: 1:8x103 (20cm) 1:2x104 (8cm) 1:4x104 (4cm)
References
Other astronomical objects
Object | Scale [1:x] K = 103 (thousand)
M = 106 (million)
G = 109 (billion) | Image |
Inner Solar System |
| Mercury | 20M, 60M, 120M |  |
| Venus | 60M, 120M, 250M |  |
| Earth | 60M, 120M, 250M |  |
| Luna | 10M, 20M, 60M |  |
| Mars | 20M, 60M, 120M |  |
| Phobos and Deimos | 200K, 500K |  |
Man-made |
| Salyut 7 | 40, 48, 80, 160 |  |
| |
| Moshup and Squannit | 8K, 20K, 40K |  |
| Ra-Shalom | 20K, 40K |  |
| Castalia | 8K, 20K, 40K |  |
| Bacchus | 8K, 20K |  |
| Bennu | 3K, 8K |  |
| Ryugu | 3K, 8K, 20K |  |
| Geographos | 40K, 80K |  |
| Phaethon | 40K, 80K |  |
| Itokawa | 3K, 8K |  |
| Eros | 80K, 200K, 500K |  |
| Nereus | 3K, 8K |  |
| Didymos and Dimorphos | 8K, 20K |  |
| Mithra | 20K, 40K |  |
| Golevka | 8K |  |
| Toutatis | 40K, 80K |  |
| |
| Gaspra | 200K |  |
| Annefrank | 40K, 80K |  |
| Braille | 20K, 40K |  |
| Vesta | 2M, 4M, 10M |  |
| Šteins | 40K, 80K, 200K |  |
| Iris | 2M, 4M |  |
| Hebe | 1M, 2M, 4M |  |
| Lutetia | 500K, 1M, 2M |  |
| Julia | 1M, 2M, 4M |  |
| Mathilde | 500K, 1M |  |
| Juno | 2M, 4M |  |
| Ceres | 4M, 10M |  |
| Pallas | 4M, 10M |  |
| Kleopatra | 2M, 4M |  |
| Ida | 500K, 1M |  |
| Psyche | 2M, 4M |  |
| Interamnia | 2M, 4M |  |
| Hygiea | 2M, 4M, 10M |  |
| Antiope | 1M, 2M |  |
| |
| Jupiter | 500M, 1G |  |
| Amalthea | 2M, 4M |  |
| Thebe | 1M, 2M |  |
| Io | 20M, 60M |  |
| Europa | 20M, 60M |  |
| Ganymede | 60M, 120M |  |
| Callisto | 60M, 120M |  |
| |
| Saturn | 500M, 1G |  |
| Pan, Daphnis and Atlas | 80K, 200K, 500K, 1M |  |
| Prometheus and Pandora | 1M, 2M |  |
| Janus and Epimetheus | 2M, 4M |  |
| Mimas | 2M, 4M, 10M |  |
| Methone, Anthe and Pallene | 40K, 80K |  |
| Enceladus | 4M, 10M |  |
| Tethys | 4M, 10M, 20M |  |
| Telesto and Calypso | 200K, 500K |  |
| Dione | 4M, 10M, 20M |  |
| Helene | 500K, 1M |  |
| Rhea | 10M, 20M |  |
| Titan | 60M, 120M |  |
| Hyperion | 2M, 4M |  |
| Iapetus | 10M, 20M |  |
| Phoebe | 1M, 2M, 4M |  |
| |
| Uranus | 250M, 500M, 1G |  |
| Puck | 1M, 2M, 4M |  |
| Miranda | 4M, 10M |  |
| Ariel | 10M, 20M |  |
| Umbriel | 10M, 20M |  |
| Titania | 10M, 20M |  |
| Oberon | 10M, 20M |  |
| |
| Neptune | 250M, 500M, 1G |  |
| Larissa | 2M, 4M |  |
| Proteus | 2M, 4M, 10M |  |
| Triton | 20M |  |
| |
| Tempel 1 | 40K, 80K, 200K |  |
| Wild 2 | 40K, 80K |  |
| Churyumov-Gerasimenko | 20K, 40K, 80K |  |
| Hartley 2 | 20K, 40K, 80K |  |
| Borrelly | 40K, 80K, 200K |  |
| Halley | 80K, 200K |  |
Centaurs and TNOs |
| Hidalgo | 500K, 1M |  |
| Chariklo | 2M, 4M |  |
| Pluto and Charon | 10M, 20M |  |
| Styx, Nix, Kerberos and Hydra | 500K, 1M |  |
| Haumea, Namaka and Hiʻiaka | 10M, 20M |  |
| Arrokoth | 200K, 500K, 1M |  |
| Largest TNOs and their moons | 10M, 20M |  |
Extrasolar |
| Exoplanets | 120M, 250M, 500M |  |
| Nearest white dwarfs | 120M, 250M |  |
| HD 189733 b | 1G |  |
| Pulsars | 200K, 500K |  |
| Cygnus X-1 accretion disk | 10M, 20M |  |
| M87* photon ring | 1.5*1014 |  |
Sky maps |
| Heliosphere | 7.5*1013, 1.5*1014 |  |
| Constellations | - |  |
| CMBR | 2*1028 |  |
Ancient |
| Earth (540 Mya to 20 Mya) | 60M, 120M, 250M |  |
| Luna (4 Gya) | 20M, 60M |  |
Speculative |
| Planet Nine | 250M, 500M |  |
| Cube planet | 60M, 120M, 250M |  |
| |
| Ghroth | 4M, 10M |  |
| Arda | 60M, 120M |  |
| B612 | 10, 20, 32, 40 |  |
| Mesklin | 500M, 1G |  |
| Arrakis | 60M, 120M |  |
| Borg cube | 8K, 20K, 40K |  |
| Pern | 60M, 120M |  |
| Europa Monolith | 200K, 500K |  |
| Leonora Christine | 500, 600, 1K, 3K |  |
| Rama | 80K, 200K, 500K |  |
| Death Star | 500K, 1M, 2M |  |
| Starkiller Base | 2M, 4M, 10M |  |
| Eternia | 60M, 120M |  |
| Visitors mothership | 20K, 40K |  |
| Wheel of Time Earth | 60M, 120M, 250M |  |
| Nirn, Secunda and Masser | 20M, 60M, 120M |  |
| ID4 mothership | 2M, 4M, 10M |  |
| Heptapod spaceship | 1K, 3K, 8K |  |
| Gaijin flowership | 3K |  |
| Red Moon | 60M, 120M |  |
| Halo Array | 4M, 10M, 20M, 60M |  |
| Gem Homeworld | 120M, 250M, 500M |  |
| Citadel of Ricks | 200K |  |
| The Skeld | 40, 80, 160, 350, 500 |  |
Misc |
| Mars (1962 reconstruction) | 60M, 120M |  |
| Flat Earth | 250M |  |
| Expanding Earth | 60M, 120M |  |
| Spaceship of Ezekiel | 80, 160 |  |
