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I've had my eye on this question for some time, but I haven't had the time to answer it. Sorry for not getting to it sooner. As zibadawa timmy said, you'd be hard-pressed to find the materials necessary for a star system if you're outside a galaxy. For one thing, there aren't any stellar nurseries in the intergalactic void (well, none that we know of. But ...


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I think it's largely a matter of personal preference. Some people will want you to be technically correct and only use "solar system" to refer to the Sun and the objects that are under its gravitational influence. Wikipedia defines it as such: The Solar System comprises the Sun and the objects that orbit it, whether they orbit it directly or by orbiting ...


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There is a rule about average surface brightness: it is conserved as you change distance or magnification. For the gory details see. Telescopes make unresolved objects brighter, but for resolved objects, a telescope shows you the actual surface brightness (assuming that the exit pupil diameter is well matched to your eye's pupil (~7mm) and is not throwing ...


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There are a number of different organizations that produce ephemeris models of the solar system. Even within one organization, there a number of different ephemeris models. The three leading organizations that produce solar system ephemerides are The Jet Propulsion Laboratory (JPL) in the USA, which produces the Development Ephemeris (DE) series of solar ...


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"we have detailed knowledge of only one planetary system, the Solar System. Data from other planetary systems around both main sequence stars and pulsars ..."[1] In the above quote, one can see that the authors say the Solar System is a planetary system and in the very next sentence they say "planetary systems around...stars" so the question of whether the ...



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