The Pitch Angle property of a spiral galaxy is a measure of how tightly the galaxy's spiral arms are wound. In Universe Sandbox, the structure of a spiral galaxy is a logarithmic spiral, such that a in a galaxy with Radius R and pitch angle P, at a point where the spiral arm is some distance D from the central Black Hole of the galaxy, the arm will have turned around the Black Hole by an angle of θ, where θ is given by
Spiral arms in galaxies with larger pitch angles will be more loosely wound than spiral arms in galaxies with smaller pitch angles.
Property Details[edit | edit source]
Location[edit | edit source]
The Pitch Angle property is located in the Spiral Section of the Galaxy tab of the galaxy's properties panel. This section is only visible for spiral galaxies.
Units[edit | edit source]
Pitch Angle can be viewed or edited using the following units:
- Radians (rad)
- Degrees (°) = (180/π) rad