GJ 357 d — GJ 357 System
Cataloged by the NASA Exoplanet Archive TAP service, GJ 357 d orbits host star GJ 357 every 55.66 days at a distance of 9.44 parsecs (30.79 light-years). With a planetary radius of 2.34 R⊕, equilibrium temperature of 220 K, and habitability index of 0.62, 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 GJ 357 d from Earth?
GJ 357 d is located 9.44 parsecs (30.79 light-years) from Earth, completing one full orbit around GJ 357 every 55.66 days.
What makes GJ 357 d a primary AstroTale habitable-zone candidate?
With a radius of 2.34 R⊕ and an equilibrium temperature of 220 K, GJ 357 d achieves a 62% Earth Similarity Score—placing it inside the circumstellar zone where liquid water can persist under moderate atmospheric pressure.
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