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Build Your Own Solar System Help File


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  • TYPE OF STAR. Many different types of stars exist in the Universe. They are distinguished by their sizes, temperatures and colors, all of which are related.
    • BLUE SUPERGIANT - Bluish in color, temperature of about 30,000 ° C, over 20 times as massive as our Sun.
    • BLUE GIANT - Bluish in color, temperature of about 15,000 ° C, about 10 times as massive as our Sun.
    • WHITE STAR - White in color, temperature of about 9,000 ° C, about 3 times as massive as our Sun.
    • YELLOWISH-WHITE STAR - Yellow-White in color, temperature of about 7,000 ° C, about one and a half times as massive as our Sun.
    • YELLOW STAR - Yellow in color, temperature of about 5,500 ° C, about as massive as our Sun.
    • ORANGE STAR - Orange in color, temperature of about 4,000 ° C, about half as massive as our Sun.
    • RED DWARF - Reddish in color, temperature of about 3,000 ° C, less than half as massive as our Sun.
  • NAME OF PLANET. Give your planet any name you'd like - be creative! For fewer than 4 planets, leave the name field blank (or write "no planet").
  • SIZE OF PLANET. Choose from: a Mercury-sized, Earth-sized, or Jupiter-sized planet. Smaller planets have more difficulty maintaining an atmospher while the largest planets can be entirely composed of gas!
  • ECCENTRICITY. This parameter measures the ellipticity of the planet's orbit. A circular orbit has eccentricity 0, while a straight line trajectory into the central star would have an eccentricy of 1.
  • SEMIMAJOR AXIS. The semimajor axis determines the size of the planet's orbit. It is measured in Astronomical Units (AU), with one AU defined as the mean distance between the Earth and the Sun.
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