Registry · exoplanet

HD 62509 b

Exoplanet

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: 07h 45m 18.92s
Declination: +28° 01′ 34.1″
Galactic l, b: 192.23, 23.41
Magnitude V: 1.125
Distance: 10.34 pc

Planet

NASA Exoplanet Archive, composite parameters

Host star	HD 62509 · K0IIIvar
Discovery	Radial Velocity, 2006 · Multiple Observatories
Orbital period	589.64 d
Semi-major axis	1.64 au
Eccentricity	0.02
Radius	13.3 R⊕ · 1.19 R♃
Mass	731 M⊕ · 2.3 M♃
Density	1.71 g/cm³
Equilibrium temperature	549.6 K
System distance	10.34 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

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
835.9	M_earth	± 31.8	Radial Velocity	NASA Exoplanet Archive	Kunitomo et al. 2011	2011
839.0712	M_earth	± 63.57	Radial Velocity	NASA Exoplanet Archive	Han et al. 2008	2008
920	M_earth	± 30	Radial Velocity	NASA Exoplanet Archive	Reffert et al. 2006	2006
731	M_earth	± 140	Radial Velocity	NASA Exoplanet Archive	Hatzes et al. 2006	2006

Orbital period 3 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
596.6	d	± 2.26	Radial Velocity	NASA Exoplanet Archive	Han et al. 2008	2008
589.7	d	± 3.5	Radial Velocity	NASA Exoplanet Archive	Reffert et al. 2006	2006
589.64	d	± 0.81	Radial Velocity	NASA Exoplanet Archive	Hatzes et al. 2006	2006

Semi-major axis 4 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1.61	au	± 0.03	Radial Velocity	NASA Exoplanet Archive	Kunitomo et al. 2011	2011
1.66	au	± 0.13	Radial Velocity	NASA Exoplanet Archive	Han et al. 2008	2008
1.69	au	± 0.03	Radial Velocity	NASA Exoplanet Archive	Reffert et al. 2006	2006
1.64	au	± 0.27	Radial Velocity	NASA Exoplanet Archive	Hatzes et al. 2006	2006

Eccentricity 3 values

Value	Uncertainty	Band / method	Source	Reference	Year
0.011	± 0.033	Radial Velocity	NASA Exoplanet Archive	Han et al. 2008	2008
0.06	± 0.04	Radial Velocity	NASA Exoplanet Archive	Reffert et al. 2006	2006
0.02	± 0.03	Radial Velocity	NASA Exoplanet Archive	Hatzes et al. 2006	2006

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
HD 62509	Star	0″	—
* bet Gem	HighPM*	0.4977″	1.14
* bet Gem b	Planet	0.4977″	—
UCAC4 591-042825	Star	153″	11.74
TYC 1920-2198-1	Star	305.3″	10.47
UCAC4 590-042801	HighPM*	362.7″	15.99
UCAC4 590-042872	Star	491.8″	—
UCAC4 590-042877	Star	494.8″	11.33

Provenance

where this card came from

Archive	Read at (UTC)	Record
Seeded from the bulk archive load; no per-object fetch yet.

Machine-readable: /api/v1/object/hd-62509-b · Registry entry updated 2026-08-14.