Brightest Stars - Planetary Systems List
21 May 2008
No planets. This is a 5-star system, any of which could support planets, but in combination would render a stable orbit all but impossible.
This is an interesting system. The main stars form a binary pair closely orbiting a common center. A third star, a red dwarf, orbits them at about 330 AU. There are five uninhabited planets inside the orbit of the red dwarf, ranging from 15 AU to 212 AU. The Confederation has a scientific research colony on the third planet.
This is another "spectroscopic binary" star. There are four planets orbiting the pair. The second one has an established Confederation research base. There is otherwise no life.
This is the "North Star". The main star has no planets. There is a close companion that orbits it at about 18.5 AU, has two Mercury-sized planets of its own, orbiting it at 0.27 and 0.84 AU. They are lifeless.
Polaris B orbits it at 2400 AU. It has five planets, one of which orbits it at 2.074 AU, almost centered in the habitable zone. It is Earthlike in many respects, and the Confederation has established a large colony on it. The intent is to "terraform" it to make it habitable. Polaris in the night sky is a spectacular sight, providing a light level of about 0.038% of sunlight on Earth, almost 200 times brighter than moonlight.
This star system is a rich mineral source. The six planets are mined by robot operations directed from the control center on Doltori. Although Alliance-controlled, it is a source of certain materials for both the Alliance and Confederation. The planets are unsuitable for permanent civilization.
This is another spectroscopic binary. There are five natural planets, none of which have permanent habitation. Alpha Andromedae AA6 is an artificial planet, built by the Alliance as a monitor of radiation and energy levels in the galaxy. It has no permanent crew, though regular maintenance and technical personnel go there to keep it in perfect working order. In addition, it is equipped as a way station for space-ships, and has a large living area which can be used as temporary quarters. It has no rotation, as it is guided by the star Polaris, and always is aligned with this star, to keep its monitor sensors aimed in the same directions in space.
No planets. This is the double-star Mizar, although Mizar and Alcor are an optical binary separated by 2.8 LY. Mizar is a spectroscopic binary. Alcor has four uninhabited planets.
This system has 12 "natural" planets. The ones above have permanent populations. There are colonies on two others, mostly for scientific research. At a distance of 1850 AU, there is a subsystem of 6 bodies, which in English would be called Limerean 13-A through -F. It is a complex arrangement of orbits within an orbit.
The two major planets (A-B) rotate about a common center, and the others follow orbits around the largest (13-A) in an unstable and non-repeating, but thusfar nonconflicting, manner. This is the only case of so complex a sub-system in the Galaxy. It is theorized that 13-A is a dead dwarf star, 13-B was a Jupiter-sized planet, and the rest were its smaller planets. Research indicates that the system was caught in the Limerean gravity field and became, in itself, a planet-satellite system of Limeria.
No planets. Complex multi-star system. Trivia: the star is also called Suhail, the same as Lambda Velorum. The name Regor was invented as a practical joke by the Apollo 1 astronaut Gus Grissom for his fellow astronaut Roger Chaffee.
No planets. Trivia: "Algol (Beta Persei), known colloquially as the Demon Star, is a bright star in the constellation Perseus. It is one of the best known eclipsing binaries, the first such star to be discovered, and also one of the first (non-nova) variable stars to be discovered. Algol is actually a three-star system (Beta Persei A, B and C) in which the large and bright primary Beta Persei A is regularly eclipsed by the dimmer Beta Persei B. Thus, Algol's magnitude is usually near-constant at 2.1, but regularly dips to 3.4 every 2 days, 20 hours and 49 minutes during the roughly 10-hour long partial eclipses."
Above data from Wikipedia: http://en.wikipedia.org/wiki/Algol
In astronomical terms, this is a new star, less than half a billion years old. It has three planets in the process of formation.
No habitable planets.
No planets. Zooran B is a dead companion star. The orbit is an exaggerated ellipse, varying from 0.02 light years to less than 2 billion miles from Zooran. Zooran B is considered a captured body rather than part of an original double.
© 2008 Robert P. Renaud -- all rights reserved