GJ 436 b

A close exoplanet with a secret: a lack of methane on this hot world. GJ 436 b is a Neptune-sized exoplanet that orbits an M-type star. Its mass is 22.1 Earths,
Planet Radius:
0.372 x Jupiter
Planet Type:
  • Neptune-like
Discovery Method:
  • Radial Velocity
Planet Mass:
22.1 Earths
Discovery Date:
Orbital Radius:
0.0291 AU
Orbital Period:
2.6 days
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