TOI-700 d — TOI-700 System
Cataloged by the NASA Exoplanet Archive TAP service, TOI-700 d orbits host star TOI-700 every 37.42 days at a distance of 31.13 parsecs (101.53 light-years). With a planetary radius of 1.07 R⊕, equilibrium temperature of 269 K, and habitability index of 0.9, 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 TOI-700 d from Earth?
TOI-700 d is located 31.13 parsecs (101.53 light-years) from Earth, completing one full orbit around TOI-700 every 37.42 days.
What makes TOI-700 d a primary AstroTale habitable-zone candidate?
With a radius of 1.07 R⊕ and an equilibrium temperature of 269 K, TOI-700 d achieves a 90% Earth Similarity Score—placing it inside the circumstellar zone where liquid water can persist under moderate atmospheric pressure.
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