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GJ 436 b

Host star GJ 436 • 4.10 R⊕ • 2.64 d orbit

Records

24

archive rows

Discovery

Radial Velocity

Radius

4.10 R⊕

median non-null value

Mass

22.38 M⊕

median non-null value

GJ 436

650 K equilibrium

Quick Summary

Fast scan of the current planet profile

This first pass still reads from the currently available detail payload. Canonical adopted summaries will replace first-row values in the next backend pass.

Host Star

GJ 436

Discovery

Radial Velocity

Year

2004

Period

2.64 day

Radius

4.22 Rearth

Mass

23.17 Mearth

Eq. Temp

649 K

Scale Comparison

Radius against familiar reference worlds

Current adopted radius: 4.10 R⊕ • circles scaled linearly by radius

Earth

1.0 R⊕ baseline

GJ 436 b

4.10 R⊕

Jupiter

11.2 R⊕ reference

Provenance

Underlying measurements and references

Evidence Summary

Rows

24

Refs

24

Methods

1

Discoverystable

24 values • 1 distinct

Facilitystable

24 values • 1 distinct

Perioddisputed

23 values • 2 distinct

Radiusdisputed

11 values • 11 distinct

Massdisputed

16 values • 14 distinct

Eq. Tempdisputed

5 values • 5 distinct

YearMethodFacilityTelescopePeriodRadiusMassEq. TempReference
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.22 Rearth23.17 Mearth649 KTorres et al. 2008
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day3.96 RearthKnutson et al. 2011
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.04 RearthPont et al. 2009
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.09 Rearth23.42 Mearth669 KSouthworth 2010
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope21.68 MearthKnutson et al. 2014
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day21.39 MearthButler et al. 2006
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day21.29 MearthButler et al. 2004
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day22.66 MearthManess et al. 2007
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 dayCaceres et al. 2009
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day21.68 MearthWright et al. 2007
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.19 Rearth23.14 Mearth686 KTurner et al. 2016
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.10 Rearth25.40 MearthLanotte et al. 2014
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.17 Rearth22.10 MearthMaciejewski et al. 2014
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.60 day4.26 Rearth23.20 Mearth650 KSalz et al. 2015
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 dayBaluev et al. 2015
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day25.40 MearthBourrier et al. 2018
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day3.81 Rearth594.0 KExoFOP
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 dayMukherjee et al. 2025
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day3.85 Rearth21.72 MearthMaxted et al. 2022
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day4.20 Rearth23.10 MearthShporer et al. 2009
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day21.36 MearthTrifonov et al. 2018
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 day21.23 MearthRosenthal et al. 2021
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 dayKokori et al. 2022
2004Radial VelocityW. M. Keck Observatory10 m Keck I Telescope2.64 dayKokori et al. 2023