Pitch Angle

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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

Simulation Effects[edit | edit source]

Galaxy Structure[edit | edit source]

Galaxy Types[edit | edit source]