Astronomy
The dust that lights the zodiac
Look across a flattened dust cloud. Change grain scattering and the observer’s height to see why the glow is concentrated near the ecliptic.
The model and its limits
Optically thin single-scattering dust with an analytic density law. Phase function and disk shape are illustrative; no absolute photometric calibration.
Equations used in the module
Equations p(μ) = (1-g²)/(4π(1+g²-2gμ)^(3/2)); ρ ∝ r^(-1.3) exp(-|z|/(0.12r))
