Arctura ("ChromaStarLite")

Reliably responsive in Chrome, Opera, and sometimes Edge browsers under Windows
OpenStar pedagogical star and planet modeling in JavaScript. Visualization in HTML5. Hover for tips. Ctrl +/- to zoom

Input:

Show/Hide stellar

Stellar parameters
Surface temperature, Tsurf
(3400 - 50000) K)
Log10 surface gravity, log(g)
(0.0 - 5.5 cm s-2 = dynes g-1)
Stellar mass
(0.1 - 20.0 MSun)
Metal content
(log10 0.001 - 10.0 x solar)

Show/Hide habitable zone

Habitable Planet Zone parameters
Surf pressure
(0.6 - 22000 kPa)
Greenhouse effect, ΔT
(-200 - +600 K)
Albedo (0.0 - 0.95)
Organic solvent
Water Methane Ammonia Carbon dioxide

Show/Hide broadening

Show/Hide samples

Output:

Plots: Radiation field