UPSA Object Registry
Registry · deep sky

GJ 436

Star M2.5 V
harvesting The full record is being pulled from the archives right now — measurement tables, the Gaia row, catalogue photometry. This page will fill itself in.
Right ascension
11h 42m 12.13s
Declination
+26° 42′ 11.0″
Galactic l, b
210.56, 74.57
Distance
9.7532 pc

Published measurements

3 quantities measured more than once
One object can carry a dozen published estimates of the same quantity. The register keeps them side by side rather than picking a winner — the citation is part of the value.

Mass 13 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.445 M_sun ± 0.018 NASA Exoplanet Archive Maxted et al. 2022 2022
0.441167 M_sun ± 0.009387 NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.445 M_sun ± 0.044 NASA Exoplanet Archive Bourrier et al. 2018 2018
0.556 M_sun ± 0.071 NASA Exoplanet Archive Lanotte et al. 2014 2014
0.452 M_sun ± 0.013 NASA Exoplanet Archive Knutson et al. 2014 2014
0.47 M_sun ± 0.07 NASA Exoplanet Archive Maciejewski et al. 2014 2014
0.452 M_sun ± 0.013 NASA Exoplanet Archive Knutson et al. 2011 2011
0.459 M_sun ± 0.046 NASA Exoplanet Archive Southworth 2010 2010
0.452 M_sun ± 0.013 NASA Exoplanet Archive Pont et al. 2009 2009
0.452 M_sun ± 0.014 NASA Exoplanet Archive Torres et al. 2008 2008
0.44 M_sun ± 0.04 NASA Exoplanet Archive Maness et al. 2007 2007
0.419868 M_sun ± 0.02017 NASA Exoplanet Archive TICv8 2006
Show the remaining 1
ValueUnitUncertainty Band / methodSourceReferenceYear
0.41 M_sun ± 0.05 NASA Exoplanet Archive Butler et al. 2004 2004

Radius 12 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.422 R_sun ± 0.01 NASA Exoplanet Archive Maxted et al. 2022 2022
0.416843 R_sun ± 0.007563 NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.449 R_sun ± 0.019 NASA Exoplanet Archive Bourrier et al. 2018 2018
0.455 R_sun ± 0.018 NASA Exoplanet Archive Lanotte et al. 2014 2014
0.455 R_sun ± 0.018 NASA Exoplanet Archive Maciejewski et al. 2014 2014
0.437 R_sun ± 0.005 NASA Exoplanet Archive Knutson et al. 2011 2011
0.454 R_sun ± 0.029 NASA Exoplanet Archive Southworth 2010 2010
0.446 R_sun ± 0.011 NASA Exoplanet Archive Pont et al. 2009 2009
0.45 R_sun ± 0.02 NASA Exoplanet Archive Shporer et al. 2009 2009
0.464 R_sun ± 0.009 NASA Exoplanet Archive Torres et al. 2008 2008
0.425432 R_sun ± 0.01252 NASA Exoplanet Archive TICv8 2006
0.425432 R_sun ± 0.01252 NASA Exoplanet Archive ExoFOP 2004

Effective temperature 13 values

ValueUnitUncertainty Band / methodSourceReferenceYear
3,505 K ± 51 NASA Exoplanet Archive Maxted et al. 2022 2022
3,586.11 K ± 36.37 NASA Exoplanet Archive Rosenthal et al. 2021 2021
3,479 K ± 60 NASA Exoplanet Archive Bourrier et al. 2018 2018
3,350 K NASA Exoplanet Archive Turner et al. 2016 2016
3,416 K ± 100 NASA Exoplanet Archive Lanotte et al. 2014 2014
3,585 K NASA Exoplanet Archive Knutson et al. 2011 2011
3,500 K ± 100 NASA Exoplanet Archive Southworth 2010 2010
3,500 K NASA Exoplanet Archive Caceres et al. 2009 2009
3,500 K NASA Exoplanet Archive Pont et al. 2009 2009
3,350 K ± 300 NASA Exoplanet Archive Torres et al. 2008 2008
3,350 K ± 300 NASA Exoplanet Archive Maness et al. 2007 2007
3,456 K ± 157 NASA Exoplanet Archive TICv8 2006
Show the remaining 1
ValueUnitUncertainty Band / methodSourceReferenceYear
3,456 K ± 157 NASA Exoplanet Archive ExoFOP 2004

Related objects

ObjectTypeRelation
GJ 436 b Exoplanethost

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
GJ 436 b Exoplanet 0″ 10.67
Ross 905c Planet Candidate 18.75″ —
Ross 905b Planet 18.75″ —
Ross 905 HighPM* 18.75″ 10.61
BD+27 2046 Star 233.2″ 10.63
TYC 1984-1884-1 RGB* 236.4″ 10.76
SDSS J114229.22+264012.4 QSO 258″ 19.32
SDSS J114229.67+263957.5 QSO 270.4″ —
SDSS J114235.30+264216.6 QSO 310.6″ —
2MASS J11422639+2638014 RGB* 314.4″ —
SDSS J114232.03+263713.3 QSO 399.7″ —

Provenance

where this card came from
ArchiveRead at (UTC)Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/gj-436 · Registry entry updated 2026-08-14.