Galaxy Radius

The Radius of a Galaxy objects is the distance between the Black Hole at the center of the galaxy and the outermost Galaxy Nebula object. The Radius property of galaxies in Universe Sandbox is not automatically calculated, and will not adjust if the galaxy changes shape during a collision with another galaxy. However, if the user adjusts the Radius, the Position Vector and Radius of each Galaxy Nebula in the galaxy will adjust to correct the size of the galaxy.

Location
The Radius property of a galaxy can be found near the top of the Galaxy tab. The Radius of a galaxy is also displayed in its mini-info panel.

Units
Radius can be viewed and edited using the following units:


 * Milky Way Galaxy radius (milky way) = 5.5×104 light year
 * Parsec (parsec) = 3.08568025×1016 m
 * Light-year (light year) = 9.46073047×1015 m
 * Astronomical Unit (AU) = 1.495978707×1011 m
 * Solar radius (sun) = 6.955×108 m
 * Lunar distance (lunar dist) = 3.844×108 m
 * Light-second (light sec) = 2.99792458×108 m
 * Jupiter radius (jupiter) = 6.9911×107 m
 * Earth radius (earth) = 6.37101×106 m
 * Moon radius (moon) = 1.7371×106 m
 * Kilometer (km) = 1000 m
 * Meter (m) is the SI base unit for length
 * Centimeter (cm) = 0.01 m
 * Millimeter (mm) = 0.001 m