Parallax Distance Lab
Grow the observing baseline and watch the parallax angle open; read the distance from p = b / d.
Parallax angle0.100″
Distance d = b / p10 pc
p ∝ b1 pc = 1 AU · 1″
Interactive model — simplified for intuition, not precision ephemerides.
Concepts in this lab
parallax anglebaselineparsecdistance ladder
Connected topic
Open lessonTrigonometric parallax
A complete introduction to Trigonometric parallax within Astrometry, linking observations, physical models, history and modern applications.