Stellar Distance and Magnitude Calculator vs Gravitational Time Dilation Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
Stellar Distance and Magnitude Calculator
Determine a star's distance in parsecs from its apparent magnitude, absolute magnitude, and interstellar extinction. Use it when converting catalog photometry into physical distances or verifying stellar parallax measurements.
- Answers
- Distance (parsecs)
- Inputs
- Apparent Magnitude, Absolute Magnitude, Interstellar Extinction, Extinction Correction
Gravitational Time Dilation Calculator
Calculates how gravity slows time near massive objects using Einstein's general relativity. Use it when comparing elapsed time at different distances from a planet, star, or black hole.
- Answers
- Time at Infinity (hours)
- Inputs
- Mass of Gravitating Body, Distance from Center, Proper Time
At a glance
| Stellar Distance and Magnitude Calculator | Gravitational Time Dilation Calculator | |
|---|---|---|
| Category | Astronomy | Relativity |
| Answers | Distance | Time at Infinity |
| Inputs | 4 | 3 |
| Result unit | parsecs | hours |
When to use each
Determine a star's distance in parsecs from its apparent magnitude, absolute magnitude, and interstellar extinction. Use it when converting catalog photometry into physical distances or verifying stellar parallax measurements.
Calculates how gravity slows time near massive objects using Einstein's general relativity. Use it when comparing elapsed time at different distances from a planet, star, or black hole.