| Abbr. |
Meaning |
| Me |
Mass Earth, a unit of measure for the mass of planets,
with the Earth being the standard. One mass Earth is equal to 5,972,000,000,000,000,000,000,000
kilograms (13,166,008,556,000,000,000,000,000 pounds). Quiet a large
amount so it's simpler to scale the mass up to representations like
3Me for 3 masses Earth. |
| AU |
Astronomical Unit, a unit of distance which is equivalent
of the Distance from The Earth to The Sun. One AU is equal to 149,600,000
km (92,959,672 miles)distance. |
| LY |
Light Year, the measure of speed and distance that light
travels in one year of time. Light travels 300,000km (186,416 miles)
in one second. According most theories, this is the ultimate speed
limit, nothing with any mass can move at this speed as it would require
an infinite amount of energy to reach light speed. Space itself however
can move (and expand) faster. |
| Mj |
Mass Jupiter, another unit of measure for the mass of
giant planets. One mass Jupiter is equal to 318 masses of Earth. |
| Ms |
Mass Sun, another unit of measure used for extremely
large objects or other stars. One mass Sun is equal to 1047 masses
of Jupiter, or 332,946 masses of Earth. |
| °c or C |
Temperature in Celsius (centigrade) |
| °f or F |
Temperature in Fahrenheit |
| °k or K |
Temperature in Kelvin, a scale where 0° is the lowest
(coldest) temperature possible. Not everyone is familiar with this
scale so it isn't used here. |
|