130 Elektra scaled one in four million

I did not render this model, I just softened and simplified the non-convex model available in the 3D Asteroid Catalogue site, where it is unreferenced, but I think that it is from Hanuš (2017). All three moons of it are too small to make in the same scale.
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.

130 Elektra

This big asteroid with a pretty fast rotation is gaining popularity recently after the discovery of its third moon in 2021, making it the object with the most moons in the Main Asteroid Belt, and the second minor planet, after Pluto. This third moon is the closest to the asteroid, and orbits very inclined (38° with its rotational axis) and eccentric, making it to approach very close to the surface of the main body near its periapsis. Of course this must perturb the moonlet's orbit after the irregular terrain of the asteroid. Asteroid moons are thought to originate after impacts and shattering of the main body, along with its asteroid family members. Although all three moons are very small compared with the main body, 6, 2 and 1.6km versus 200km of the asteroid, minor planets are often referred as "multiple systems" instead of "asteroid-moons system", so that, Elektra is now called the "quadruple asteroid". This is because minor planets share their physical characteristics, so setting up a limit for the "multiplicity" of the system is not so objective. The exact opposite case is for the designation, no matter how similar in mass the components are, there is no figure for a "double asteroid" designation, both parts are named independently, as it happens with Antiope, in which both parts are almost the same mass, but only the slightly bigger component should be called "Antiope".

• Type: Asteroid.
• Orbit: Sun. Main Asteroid Belt.
• Orbital period: 5.53 yr.
• Rotational period: 5 h 13 min 28 s.
• Composition: Carbonaceous and ice. G-type.
• Density: 1.55 g/cm³
• Dimensions: 262 km × 205 km × 164 km
• Model scale: 1:1x10⁶ (26cm) 1:2x10⁶ (13cm) 1:4x10⁶ (6.5cm)

References

• Shape model of asteroid (130) Elektra from optical photometryand disk-resolved images from VLT/SPHERE and Nirc2/Keck. Hanuš et al. 2017

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
Near Earth Asteroids
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
Main Asteroid Belt
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
Elektra	1M, 2M, 4M
Hygiea	2M, 4M, 10M
Antiope	1M, 2M
Jovian System
Jupiter	500M, 1G
Amalthea	2M, 4M
Thebe	1M, 2M
Io	20M, 60M
Europa	20M, 60M
Ganymede	60M, 120M
Callisto	60M, 120M
Saturn System
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
Uranian System
Uranus	250M, 500M, 1G
Puck	1M, 2M, 4M
Miranda	4M, 10M
Ariel	10M, 20M
Umbriel	10M, 20M
Titania	10M, 20M
Oberon	10M, 20M
Neptunian System
Neptune	250M, 500M, 1G
Larissa	2M, 4M
Proteus	2M, 4M, 10M
Triton	20M
Comets
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
Science Fiction
Ghroth	4M, 10M
Arda	60M, 120M
Life Foundation rocket	160, 200, 350, 500
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
Z-95	40, 80, 160, 200
Eternia	60M, 120M
Visitors mothership	20K, 40K
Wheel of Time Earth	60M, 120M, 250M
Nirn, Secunda and Masser	20M, 60M, 120M
ID mothership	2M, 4M, 10M
ID troop transporter	200, 350, 500, 600, 1K
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, 200, 350, 500
Misc
Mars (1962 reconstruction)	60M, 120M
Flat Earth	250M
Expanding Earth	60M, 120M
Spaceship of Ezekiel	80, 160