- More elaborate model for planet surface temperature
- Accounts for tidal heating
- Accounts for internal heat sources, such as gravitational accretion in gas giants
- Atmospheric pressure accounted for in greenhouse model, i.e. should be able to model Venus- and Mars-like worlds and super-earths
- Visible light vs. total radiative flux in planetary habitability calculator
- Radiation belts and their effects on lunar habitability
- Ring system calculator (estimate from mass and particle density)
- Done: “Ring system” calculator
- Account for the age of a star when calculating its radius and luminosity
- Done: “Stellar evolution” calculator
- Support giant branch in “Stellar evolution” calculator; find some approximation for the duration of the red-giant branch transition in relation to a star’s mass or MS luminosity; something logarithmic will probably work well
- Calculator for matter/antimatter explosions
- Done: “Matter/antimatter annihilation” calculator
- Metallicity parameter in “Star properties” and “Stellar evolution” calculators
- Equatorial to galactic coordinates converter plus a degrees <-> radians converter