The Encyclopędia Planetę                                                                                                                                                                                                                                                                   

Eta Cassiopeiae A
The Achird System
And the primary world of San Gabriel
presented by the Exploration Society's Institute of Planetological Natural History


San Joaquin is a Phosphorian Type world, with a surface temperature so hot that nearly all atmospheric
clouds are absent and incapable of forming.  This, despite a crushingly thick atmosphere.


Salinas is a Vestian Subtype world, its surface marked by ancient rifts, hinting at a dynamic geological
past.  Today, however, it is a small and quiescent world, heavily cratered and without an atmosphere.


The San Gabriel system is comprised of a planet, two moons, and an eroding ring system.  San Gabriel
itself is a GaianPelagic Subdivision world, all of its major landmasses coalesced into a single super-
continent which stretches from the north polar to the south polar regions.  Life suffered a mass
extinction several million years ago, and today some five major groups have expanded to fill in nearly
every available niche on land and in the sea.  The ring system was likely formed by the break-up of a
close approaching asteroid several million years ago.  It has been eroding ever since, and equatorial
meteor showers of great density and beauty are a nightly occurrence because of this.


A detail of San Gabriel.  The single continent is lush, and though a large mountain range runs for
nearly the entire length of the landmass, only in the highest or most poalr regions do they host snow
or glaciers.  San Gabriel is a warm world, despite the local climatic variations often caused by the ring
shadows.


A conjunction on the surface of San Gabriel, with the moons Glendora and Valinda in the sky, along
with the ring system.


Glendora, a Cerean Type body, is likely a captured moon.  Some scientists believe that the mass
extinction, the formation of the rings, and the capturing of Glendora are all related events.


Valinda is the outer, Selenian moon.  Valinda is mysterious in that it orbits far closer to San Gabriel
than it should, for the age of this star system.  Some scientists hypothesize that Valinda was the
body which had been captured by San Gabriel, and that Glendora was one of possibly two or three
moons.  If this is true, then the other missing moons may have either impacted the planet's surface,
or broke up in close orbit and formed the planet's ring system.  regardless, the tidal stresses by
such a capture could have caused enough volcanism on San Gabriel to account for the mass extinction.


Redwood, the system's only gas giant, is a typical Jovic Type body.  Its northern hemisphere great
red spot is likely hundreds of years old, as is the case with most large cyclonic systems on Jovians.


Del Norte, the only major moon of Redwood, is a typical LithicGelidian Subtype world.  If anything,
it is more than uninteresting; there are signs of geological activity on its surface, but these are likely
billions of years old.

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Title Page - Introduction - The Home System - The Core Systems - The Mid Volumes - The Outer Systems - The Periphery - The Frontier - Worlds Beyond the League

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The ArcBuilder Universe is a science fiction project established, authored, and copyrighted © by John M. and Margo L. Dollan 2002-2007
Planetary images made with Celestia 1.5.0 pre2;
This page first uploaded January 14, 2007
Most recent update for this page January 20, 2007