55 Cnc f — 55 Cnc System
Cataloged by the NASA Exoplanet Archive TAP service, 55 Cnc f orbits host star 55 Cnc every 260.58 days at a distance of 12.59 parsecs (41.06 light-years). With a planetary radius of 7.59 R⊕, equilibrium temperature of 277 K, and habitability index of 0.55, 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 55 Cnc f from Earth?
55 Cnc f is located 12.59 parsecs (41.06 light-years) from Earth, completing one full orbit around 55 Cnc every 260.58 days.
What makes 55 Cnc f a primary AstroTale habitable-zone candidate?
With a radius of 7.59 R⊕ and an equilibrium temperature of 277 K, 55 Cnc f achieves a 55% Earth Similarity Score—placing it inside the circumstellar zone where liquid water can persist under moderate atmospheric pressure.
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