Ferrinian Type

Massive stars are always accompanied by intense stellar winds, more so for a few million years after their birth.  One of the unfortunate side effects of these winds is the erosion, and often times immolation of nascent planetary bodies.  However, high metal stars tend to form massive planets, and these worlds are not as easy to destroy.

In the case of terrestrial worlds, the lighter materials and volatiles of especially close planets are quickly removed, leaving behind only the heavier elements.  What results is a terrestrial world much like the smaller Hadean Planetoid, but on a planetary scale.  There is almost no rocky material, and instead the planet is composed of heavy iron materials, as well as others.

Atmospheric composition tends to be extremely rarified, or all together absent.  Only the constant stellar winds supply a very tenuous atmosphere of helium and hydrogen, which is constantly being removed and replenished by the local sun.

Even in orbit of young, hot and metal-rich stars, Ferrinian planets are quite rare.  Indeed, most stars do not possess enough heavy materials to form such a world.  But when discovered, they are a huge source of resources.

On the surface, there is little difference between Ferrinian worlds and other airless, cratered planetary bodies.

The surface of a Ferrinian world bakes under the intense light of its local, and close, sun.

Quick Facts

The Myth of Ferrinian Worlds: For a very long time, it was assumed that Ferrinian worlds were to be found only in the realm of scientific theory.  However, the first such worlds were found orbiting EpiStellar Jovians, and while they were indeed rare, they were no longer hypothetical.


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ArcBuilder Universe concept John M. and Margo L. Dollan 2002-2004
This Page first uploaded June 13, 2004
Most recent update for this page June 13, 2004