UPSA Object Registry
Registry · exoplanet

HD 5319 b

Exoplanet 30 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
00h 55m 01.39s
Declination
+00° 47′ 21.6″
Galactic l, b
124.85, -62.07
Magnitude V
8.05
Distance
121.41 pc

Also known as

1 identifiers

HD 5319b

Planet

NASA Exoplanet Archive, composite parameters
Host starHD 5319 · K0III
DiscoveryRadial Velocity, 2007 · W. M. Keck Observatory
Orbital period637.1 d
Semi-major axis1.57 au
Eccentricity0.092
Radius13.5 R⊕ · 1.21 R♃
Mass494.54 M⊕ · 1.556 M♃
Density1.1 g/cm³
Equilibrium temperature377.72 K
System distance121.41 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 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
494.5435 M_earth ± 13.35 Radial Velocity NASA Exoplanet Archive Luhn et al. 2019 2019
495.8148 M_earth ± 92.17 Radial Velocity NASA Exoplanet Archive Ment et al. 2018 2018
543.4893 M_earth ± 82.64 Radial Velocity NASA Exoplanet Archive Stassun et al. 2017 2017
559.36 M_earth ± 22.25 Radial Velocity NASA Exoplanet Archive Giguere et al. 2015 2015
616.56 M_earth Radial Velocity NASA Exoplanet Archive Robinson et al. 2007 2007

Orbital period 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
637.1 d ± 1.4 Radial Velocity NASA Exoplanet Archive Luhn et al. 2019 2019
638.6 d ± 1.2 Radial Velocity NASA Exoplanet Archive Ment et al. 2018 2018
641 d ± 2 Radial Velocity NASA Exoplanet Archive Stassun et al. 2017 2017
641 d ± 2 Radial Velocity NASA Exoplanet Archive Giguere et al. 2015 2015
674.6 d ± 17 Radial Velocity NASA Exoplanet Archive Robinson et al. 2007 2007

Semi-major axis 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1.57 au ± 0.11 Radial Velocity NASA Exoplanet Archive Luhn et al. 2019 2019
1.57 au ± 0.13 Radial Velocity NASA Exoplanet Archive Ment et al. 2018 2018
1.67 au ± 0.04 Radial Velocity NASA Exoplanet Archive Stassun et al. 2017 2017
1.6697 au ± 0.0036 Radial Velocity NASA Exoplanet Archive Giguere et al. 2015 2015
1.75 au Radial Velocity NASA Exoplanet Archive Robinson et al. 2007 2007

Eccentricity 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.092 ± 0.025 Radial Velocity NASA Exoplanet Archive Luhn et al. 2019 2019
0.015 ± 0.016 Radial Velocity NASA Exoplanet Archive Ment et al. 2018 2018
0.02 ± 0.03 Radial Velocity NASA Exoplanet Archive Stassun et al. 2017 2017
0.02 ± 0.03 Radial Velocity NASA Exoplanet Archive Giguere et al. 2015 2015
0.12 ± 0.08 Radial Velocity NASA Exoplanet Archive Robinson et al. 2007 2007

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
HD 5319 c Exoplanet 0″ 8.05
HD 5319 Star 0.7729″ 8.05
SA 92- Region 37.05″ —
UCAC4 454-001181 Star 192.7″ 15.58
GSC 00012-00233 Star 206.3″ 12.52
CAIRNS J005459.55+005108.0 GtowardsCl 228″ —
SDSS J005445.02+004741.0 QSO 246.2″ —
TYC 12-214-1 Star 279.6″ 11.62
SDSS J005518.98+005004.9 QSO 310.3″ 19.48
SDSS J005448.59+004251.7 QSO 331.2″ —
ISI96 0052+0029 LowSurfBrghtG 345.3″ —

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-5319-b · Registry entry updated 2026-08-14.