Aphelion / Perihelion
Calculate Aphelion / Perihelion instantly with the exact formula and a worked example.
Aphelion / Perihelion
Semi-major axisAU
Eccentricity
Aphelion
1.0167AU
More about: Aphelion / Perihelion
What it calculates
The “Aphelion / Perihelion” calculator computes Aphelion in AU from 2 parameters: semi-major axis (AU), eccentricity.
An astronomy calculation for enthusiasts and scientists.
Example calculation
With parameters Semi-major axis = 1 AU, Eccentricity = 0.0167 the result is 1.02 AU.
How to use
- Enter semi-major axis and eccentricity — each field above is adjustable with a slider.
- Aphelion (AU) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Aphelion / Perihelion calculated?
The Aphelion / Perihelion calculator computes Aphelion (in AU) from semi-major axis, eccentricity. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Aphelion / Perihelion calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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