UPSA Object Registry
Registry · exoplanet

K2-127 b

Exoplanet 8 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
13h 48m 18.79s
Declination
−11° 35′ 20.4″
Galactic l, b
324.4, 48.9
Magnitude V
15.04
Distance
710 pc

Also known as

1 identifiers

K2-127b

Planet

NASA Exoplanet Archive, composite parameters
Host starK2-127 · K3V
DiscoveryTransit, 2017 · K2
Orbital period3.58816 d
Semi-major axis0.0411 au
Eccentricity0.12
Radius8.37 R⊕ · 0.7467 R♃
Mass52.9 M⊕ · 0.167 M♃
Density0.496 g/cm³
Equilibrium temperature809 K
System distance710 pc

Recorded parameters

1 quantity with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Eccentricity 0.12 ± 0.1422 Transit NASA Exoplanet Archive Dressing et al. 2017

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.

Radius 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
12.72 R_earth ± 1.11 Transit NASA Exoplanet Archive Kruse et al. 2019 2019
8.37 R_earth ± 0.33 Transit NASA Exoplanet Archive Livingston et al. 2018 2018
9.1 R_earth ± 3.7 Transit NASA Exoplanet Archive Petigura et al. 2018 2018
8.66 R_earth ± 0.68 Transit NASA Exoplanet Archive Dressing et al. 2017 2017
11.43763 R_earth ± 1.761 Transit NASA Exoplanet Archive ExoFOP 2017

Orbital period 6 values

ValueUnitUncertainty Band / methodSourceReferenceYear
3.588162 d ± 1.20e-05 Transit NASA Exoplanet Archive Kruse et al. 2019 2019
3.588163 d ± 2.80e-05 Transit NASA Exoplanet Archive Livingston et al. 2018 2018
3.588158 d ± 3.00e-05 Transit NASA Exoplanet Archive Petigura et al. 2018 2018
3.588165 d ± 1.50e-05 Transit NASA Exoplanet Archive Dressing et al. 2017 2017
3.586855 d ± 0.0008501 Transit NASA Exoplanet Archive ExoFOP 2017
3.588 d Transit NASA Exoplanet Archive Pope et al. 2016 2016

Semi-major axis 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.0411 au ± 0.0002 Transit NASA Exoplanet Archive Livingston et al. 2018 2018
0.041 au ± 0.001 Transit NASA Exoplanet Archive Dressing et al. 2017 2017

Equilibrium temperature 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
809 K ± 15 Transit NASA Exoplanet Archive Livingston et al. 2018 2018
1,057.3 K Transit NASA Exoplanet Archive ExoFOP 2017

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
K2-127 Low-Mass* 0.3673″ 15.04
GALEX J134810.1-113618 WhiteDwarf 140.1″ —
2MASX J13481414-1138322 Galaxy 203.7″ —
LSQ 13pf Supernova 208.8″ —
LEDA 963416 Galaxy 317.7″ —
TYC 5556-988-1 Star 425.6″ 11.13
HD 120171 Star 455.8″ 8.79

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/k2-127-b · Registry entry updated 2026-08-14.