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Real planet · Catalog assessment

Ross 128 b

Host star: Ross 128 (M-type star). Explore the evidence for this world’s possible conditions.

NASA Science: Ross 128 b NASA Archive: Ross 128 b

Habitability verdict · Starting criteria

Potentially habitable

Meets our starting size and starlight criteria. Water, atmosphere, and life are not confirmed.

Habitable-zone position

Within the reference habitable zone

Its starlight falls within our reference range. With a suitable atmosphere and pressure, surface liquid water could be possible; this does not confirm water or life.

Host star · 0 AU0.148 AU
Pink: more starlight · Green: reference habitable zone · Blue: less starlight.
Ross 128 b orbits at 0.05 AU; reference zone: 0.045–0.098 AU. Diagram uses the listed orbit and starlight with the inverse-square relationship; sizes are symbolic.