UPSA Object Registry
Registry · exoplanet

ups And c

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, 1999 · Multiple Observatories
Orbital period241.258 d
Semi-major axis0.82777 au
Eccentricity0.2596
Radius12.3 R⊕ · 1.1 R♃
Mass4,443.2 M⊕ · 13.98 M♃
Density13.1 g/cm³
Equilibrium temperature407.56 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 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
653 M_earth ± 26 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
624.5328 M_earth ± 15.57 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
629.595 M_earth ± 6.039 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
4,443.241 M_earth ± 731 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
610.2336 M_earth ± 50.85 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
629.28 M_earth ± 28.6 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
715.09 M_earth ± 19.07 Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004

Orbital period 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
241.201 d ± 0.037 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
241.223 d ± 0.045 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
241.258 d ± 0.064 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
240.9402 d ± 0.047 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
241.33 d ± 0.2 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
241.52 d ± 0.21 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
238.1 d ± 0.46 Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004

Semi-major axis 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.849 au ± 0.016 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
0.8265 au ± 0.0086 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.827774 au ± 1.50e-05 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
0.829 au ± 0.043 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
0.832 au ± 0.048 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
0.83 au ± 0.01 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
0.821 au Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004

Eccentricity 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.274 ± 0.0094 Radial Velocity NASA Exoplanet Archive Harada et al. 2025 2025
0.266 ± 0.012 Radial Velocity NASA Exoplanet Archive Rosenthal et al. 2021 2021
0.2596 ± 0.0079 Radial Velocity NASA Exoplanet Archive Curiel et al. 2011 2011
0.245 ± 0.006 Radial Velocity NASA Exoplanet Archive McArthur et al. 2010 2010
0.224 ± 0.021 Radial Velocity NASA Exoplanet Archive Wright et al. 2009 2009
0.254 ± 0.016 Radial Velocity NASA Exoplanet Archive Wittenmyer et al. 2007 2007
0.185 ± 0.028 Radial Velocity NASA Exoplanet Archive Naef et al. 2004 2004

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
ups And b 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-c · Registry entry updated 2026-08-14.