The Star Fraction property of a Galaxy Nebula object represents the fraction of the object's mass that is present in stars, relative to the amount of mass in gas or dust. The Star Fraction affects the object's appearance, as stars will appear as points of light in the nebula. The Star Fraction, Gas Fraction, and Dust Fraction values will always sum to 100%.
The Star Fraction is automatically calculated by Universe Sandbox based on the Galaxy Type and the nebula's position within the Galaxy. However, the user can change the Star Fraction, which will automatically turn off the Enable Nebula Evolution toggle for the individual nebula.
Property Details
Location
The Star Fraction property is located in the Content section in the Nebula tab of the nebula's properties panel.
Units
Star Fraction is a unitless property between 0 and 1, but it can be viewed and edited as either a fraction or a percentage.