Teegarden’s Star b — Teegarden’s Star System
Cataloged by the NASA Exoplanet Archive TAP service, Teegarden’s Star b orbits host star Teegarden’s Star every 4.91 days at a distance of 3.831 parsecs (12.5 light-years). With a planetary radius of 1.05 R⊕, equilibrium temperature of 264 K, and habitability index of 0.95, it represents a premier target for transmission spectroscopy of water vapor, carbon dioxide, and biosignature disequilibrium gases.
Caltech / NASA Exoplanet Archive TAP Parameters
Habitable-Zone Frequently Asked Questions
How far away is exoplanet Teegarden’s Star b from Earth?
Teegarden’s Star b is located 3.83 parsecs (12.5 light-years) from Earth, completing one full orbit around Teegarden’s Star every 4.91 days.
What makes Teegarden’s Star b a primary AstroTale habitable-zone candidate?
With a radius of 1.05 R⊕ and an equilibrium temperature of 264 K, Teegarden’s Star b achieves a 95% Earth Similarity Score—placing it inside the circumstellar zone where liquid water can persist under moderate atmospheric pressure.
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