Krelln

This article or section refers to elements from The Dune Encyclopedia

Krelln is the largest of the two Arrakian satellites. Krelln has the same face towards Arrakis at nearly all times.

The moon has been of limited commercial use except of titanite mining operations. It has also functioned as an observational facility for deep space surveillance.

Geology

It is composed of titanium-rich silicates in the crust and mantel. The silicate mantel extends to a depth of 170 km. There is no apparent differentiation in composition which implies scant reheating following its formation. Seismic studies established small, rocky core.

Krelln has no atmosphere, and the landscape is stark. The only erosion occurs due to thermal stress and particle impacts. A layer of meteoritic dust covers the surface of Krelln to a depth of 11 cm. Large numbers of craters dot the surface whose diameters range from 40 km to small pit-like features less than 1 mm in diameter.

Other data

• Mean radius: 488 km
• Orbit distance: 324,077 km.
• Density: 3.97 g/cm³
• Orbit: every 25.5 days
• Angular diameter: 10.36 arc minutes

(total eclipses of Canopus do not occur)

• Libration: 16° once each orbit

Images of Krelln (the First moon)

Krelln, the First moon (The Dune Encyclopedia)

The two moons of Arrakis (Dune, 1984)

The two moons of Arrakis, the First moon the larger of the two, with the "Hand of God" (Dune, 2021)

Arrakis and its moons projected by filmbook with solido projector (Dune, 2021)

Sources

• ARRAKIS, Astronomical aspects of

See also

• First moon - The fully-canon portrayal of this moon in Frank Herbert's original Dune novels.