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sci.stellar-distance-parallax Calculator
Calculates stellar distance from trigonometric parallax: d (pc) = 1/p (arcsec), and converts parsecs to light-years (1 pc = 3.2616 ly). Hipparcos catalogue provides parallaxes for 2.5 million stars with σp ≈ 1 mas — Gaia DR3 achieves 7 µas precision, reaching d ≈ 10,000 pc for bright stars.
Inputs
Parallax Mas
Reference formula or conversion factor shown for context.
Results
distance (parsecs)
The computed distance or separation.
distance (light-years)
The computed distance or separation.
distance (AU)
The computed distance or separation.
distance modulus μ
The computed distance or separation.
d(pc) = 1 / p(arcsec)
Reference formula or conversion factor shown for context.