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Light Year Conversion
Convert astronomical distances from light years to kilometers, miles, astronomical units, and parsecs
Astronomy Standard: $1\text{ light-year (ly)}$ is the distance light travels in one Julian year ($365.25\text{ days}$) at speed $c \approx 299,792,458\text{ m/s}$, which is approximately $9.461 \times 10^{12}\text{ km}$.
Light Years Input
Calculation Results
⚠️ Standard astronomical constants are applied. Verify deep-space parameters for astrophysics or educational research.