UPSA Object Registry
Registry · exoplanet

HD 37124 d

Exoplanet 46 papers
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
05h 37m 02.40s
Declination
+20° 43′ 44.3″
Galactic l, b
185.96, -5.975
Magnitude V
7.68
Distance
31.663 pc

Also known as

1 identifiers

HD 37124d

Planet

NASA Exoplanet Archive, composite parameters
Host starHD 37124 · G4IV-V
DiscoveryRadial Velocity, 2005 · W. M. Keck Observatory
Orbital period1,862 d
Semi-major axis2.807 au
Eccentricity0.16
Radius14 R⊕ · 1.25 R♃
Mass221.21 M⊕ · 0.696 M♃
Density0.443 g/cm³
Equilibrium temperature159.79 K
System distance31.663 pc

Published measurements

4 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 4 values

ValueUnitUncertainty Band / methodSourceReferenceYear
209.4489 M_earth ± 10.81 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
221.2097 M_earth ± 18.75 Radial Velocity NASA Exoplanet Archive Wright et al. 2011 2011
220.883 M_earth Radial Velocity NASA Exoplanet Archive Gozdziewski et al. 2006 2006
209.76 M_earth Radial Velocity NASA Exoplanet Archive Vogt et al. 2005 2005

Orbital period 3 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1,768 d ± 15 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
1,862 d ± 38 Radial Velocity NASA Exoplanet Archive Wright et al. 2011 2011
2,295 d Radial Velocity NASA Exoplanet Archive Vogt et al. 2005 2005

Semi-major axis 4 values

ValueUnitUncertainty Band / methodSourceReferenceYear
2.671 au ± 0.022 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
2.807 au ± 0.038 Radial Velocity NASA Exoplanet Archive Wright et al. 2011 2011
3.142 au Radial Velocity NASA Exoplanet Archive Gozdziewski et al. 2006 2006
3.19 au Radial Velocity NASA Exoplanet Archive Vogt et al. 2005 2005

Eccentricity 4 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.16 ± 0.12 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.16 ± 0.14 Radial Velocity NASA Exoplanet Archive Wright et al. 2011 2011
0.297 Radial Velocity NASA Exoplanet Archive Gozdziewski et al. 2006 2006
0.2 Radial Velocity NASA Exoplanet Archive Vogt et al. 2005 2005

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
HD 37124 b Exoplanet 0″ 7.68
HD 37124 c Exoplanet 0″ 7.68
HD 37124 HighPM* 6.626″ —
BD+20 1017 LongPeriodV* Candidate 127.5″ 10.05
ATO J084.1538+20.6341 EclBin 494.3″ —

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/hd-37124-d · Registry entry updated 2026-08-14.