Telesto size and scale context

Telesto is a small Trojan moon of Saturn that shares [Tethys's](tethys) orbit, holding the leading L4 point about 60 degrees ahead of the larger moon. Cassini's 2005 images revealed a surprisingly smooth surface with few small impact craters. Read its scale context, comparisons, and journey links on the canonical object page.

PhobosSmall irregular moon·22 km

CalypsoTrojan moon·29.4 km

TelestoTrojan moon·33.2 km

433 ErosS-type near-Earth asteroid·34 km

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Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

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Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

Editorial

Solar System Planets From Electron to Atoms Stars To Scale Birth And Death Of Stars Black Holes To Scale

Views

Planets of the Solar System Stars of the Universe Black holes Subatomic scale

Open Scale of Space Browse all comparisons

Moons

Calypso

Calypso is a small Trojan moon of Saturn that shares Tethys's orbit, holding the trailing L5 point about 60 degrees behind the larger moon. Its bright, irregular surface is coated by fine ice particles from Saturn's E ring.

Scale fact29.4 kmmaximum extent

Object class: Trojan moon
Host: Saturn

Moons

Telesto

Telesto is a small Trojan moon of Saturn that shares Tethys's orbit, holding the leading L4 point about 60 degrees ahead of the larger moon. Cassini's 2005 images revealed a surprisingly smooth surface with few small impact craters.

Scale fact33.2 kmmaximum extent

Object class: Trojan moon
Host: Saturn

Asteroids

433 Eros

Eros is an elongated near-Earth asteroid explored by NASA’s NEAR Shoemaker mission. NEAR became the first spacecraft to orbit an asteroid and then survive a touchdown on one, turning Eros into a milestone in asteroid exploration.

Scale fact34 kmmaximum extent

Object class: S-type near-Earth asteroid
Mass: ~6.7 trillion tonnes
Estimated age: ~4.5 billion years
Composition: Silicate rock with metal