description GJ 3470 b Overview
GJ 3470 b is a transiting warm sub-Neptune orbiting the M-dwarf GJ 3470, about 96 light-years from Earth. It has a mass of roughly 12.6 Earth masses, a radius about 4.3 times Earth’s, and an orbital period of around 3.3 days. Ultraviolet observations have detected hydrogen and helium escaping from its upper atmosphere, making the planet a useful case for studying atmospheric erosion from a close-in, low-density world.
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How good is GJ 3470 b?
GJ 3470 b scores 6.62/10 (Fair) on Lunoo, making it rated in the Exoplanet category.
What are the best alternatives to GJ 3470 b?
See our alternatives page for GJ 3470 b for a ranked list with scores. Top alternatives include: GJ 436 b, K2-18b, TRAPPIST-1c.
How does GJ 3470 b compare to GJ 436 b?
See our detailed comparison of GJ 3470 b vs GJ 436 b with scores, features, and an AI-powered verdict.
Is GJ 3470 b worth it in 2026?
With a score of 6.62/10, GJ 3470 b is a solid option in Exoplanet. See all Exoplanet ranked.
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