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Both calculators run independently — change the inputs on either side to compare results.
Astronomy
Planetary Temperature Calculator
Estimate a planet's equilibrium temperature based on its host star's temperature, radius, and the planet's orbital distance. Useful for assessing whether exoplanets might fall within a habitable zone.
Fill in the required fields to see your result.
Astronomy
Schwarzschild Radius Calculator
Compute the Schwarzschild radius — the event horizon size of a non-rotating black hole — from its mass via r_s = 2GM/c². The defining length scale of black holes, equal to about 3 km per solar mass.
Fill in the required fields to see your result.
Key differences
| Planetary Temperature Calculator | Schwarzschild Radius Calculator | |
|---|---|---|
| Category | Astronomy | Astronomy |
| Inputs required | 3 | 1 |
| Result | Planetary Temperature (K) | Schwarzschild Radius (km) |
| What it does | Estimate a planet's equilibrium temperature based on its host star's temperature, radius, and the planet's orbital distance. Useful for assessing whether exoplanets might fall within a habitable zone. | Compute the Schwarzschild radius — the event horizon size of a non-rotating black hole — from its mass via r_s = 2GM/c². The defining length scale of black holes, equal to about 3 km per solar mass. |