Displays this help screen. To exit, click one of the
Exit Help buttons.
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.
Exit Help