UPSA Object Registry
Registry · exoplanet

ups And 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
01h 36m 47.60s
Declination
+41° 24′ 13.7″
Galactic l, b
132, -20.67
Magnitude V
4.096
Distance
13.405 pc

Planet

NASA Exoplanet Archive, composite parameters
Host starups And · F8 V
DiscoveryRadial Velocity, 1996 · Lick Observatory
Orbital period4.61703 d
Semi-major axis0.059222 au
Eccentricity0.0215
Radius14 R⊕ · 1.25 R♃
Mass218.53 M⊕ · 0.6876 M♃
Density0.438 g/cm³
Equilibrium temperature1,523.7 K
System distance13.405 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 8 values

ValueUnitUncertainty Band / methodSourceReferenceYear
227.7 M_earth ± 8.7 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
214.5342 M_earth ± 5.085 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
218.531 M_earth ± 1.398 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
219.3016 M_earth ± 5.085 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
213.5818 M_earth ± 17.8 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
219.29 M_earth ± 9.53 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
238.36 M_earth ± 3.18 Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004
216.1244 M_earth Radial Velocity NASA Exoplanet Archive Butler et al. 1997 1997

Orbital period 8 values

ValueUnitUncertainty Band / methodSourceReferenceYear
4.617118 d ± 9.50e-06 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
4.617122 d ± 1.20e-05 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
4.617033 d ± 2.30e-05 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
4.617111 d ± 1.40e-05 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
4.617136 d ± 4.70e-05 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
4.61708 d ± 6.00e-05 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
4.61712 d ± 9.00e-05 Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004
4.611 d ± 0.005 Radial Velocity NASA Exoplanet Archive Butler et al. 1997 1997

Semi-major axis 8 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.0607 au ± 0.0011 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
0.05914 au ± 0.00061 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.05922166 au ± 2.00e-07 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
0.0594 au ± 0.0003 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
0.0595 au ± 0.0034 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
0.059 au ± 0.001 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
0.059 au Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004
0.057 au Radial Velocity NASA Exoplanet Archive Butler et al. 1997 1997

Eccentricity 8 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.0087 ± 0.0074 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
0.0069 ± 0.0072 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.0215 ± 0.0007 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
0.012 ± 0.005 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
0.013 ± 0.016 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
0.029 ± 0.013 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
0.02 ± 0.023 Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004
0.109 ± 0.04 Radial Velocity NASA Exoplanet Archive Butler et al. 1997 1997

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
ups And c Exoplanet 0″ 4.096
ups And Star 0″ —
ups And d Exoplanet 0″ 4.096
* ups And e Planet 6.49″ —
* ups And HighPM* 6.49″ 4.1
* ups And c Planet 6.49″ —
* ups And b Planet 6.49″ —
* ups And d Planet 6.49″ —
* ups And B HighPM* 52.19″ —
Gaia DR3 348024601609783424 WhiteDwarf 343.6″ —
CRTS J013611.4+412302 EclBin 413.4″ 15.74

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/ups-and-b · Registry entry updated 2026-08-14.