Registry · exoplanet

WASP-127 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: 10h 42m 14.10s
Declination: −03° 50′ 06.0″
Galactic l, b: 252.72, 46.06
Magnitude V: 10.15
Distance: 159.51 pc

Planet

NASA Exoplanet Archive, composite parameters

Host star	WASP-127
Discovery	Transit, 2016 · SuperWASP
Orbital period	4.17806 d
Semi-major axis	0.0484 au
Eccentricity	0
Radius	14.695 R⊕ · 1.311 R♃
Mass	52.347 M⊕ · 0.1647 M♃
Density	0.097 g/cm³
Equilibrium temperature	1,400 K
System distance	159.51 pc

Published measurements

6 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 3 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
52.44169	M_earth	± 6.674	Transit	NASA Exoplanet Archive	Wallack et al. 2021	2021
52.3466	M_earth	± 6.802	Transit	NASA Exoplanet Archive	Seidel et al. 2020	2020
57.2094	M_earth	± 6.357	Transit	NASA Exoplanet Archive	Lam et al. 2017	2017

Radius 4 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
14.69497	R_earth	± 0.2802	Transit	NASA Exoplanet Archive	Wallack et al. 2021	2021
14.695	R_earth	± 0.2802	Transit	NASA Exoplanet Archive	Seidel et al. 2020	2020
15.35633	R_earth	± 0.4484	Transit	NASA Exoplanet Archive	Lam et al. 2017	2017
14.69526	R_earth	± 0.6492	Transit	NASA Exoplanet Archive	ExoFOP	2016

Orbital period 9 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
4.178062	d		Transit	NASA Exoplanet Archive	Boehm et al. 2025	2025
4.178065	d	± 5.70e-07	Transit	NASA Exoplanet Archive	Kokori et al. 2023	2023
4.178065	d	± 6.00e-07	Transit	NASA Exoplanet Archive	Ivshina & Winn 2022	2022
4.17807	d	± 5.70e-07	Transit	NASA Exoplanet Archive	Wallack et al. 2021	2021
4.178062	d	± 8.80e-07	Transit	NASA Exoplanet Archive	Seidel et al. 2020	2020
4.178062	d	± 1.30e-06	Transit	NASA Exoplanet Archive	Skaf et al. 2020	2020
4.178062	d	± 2.00e-06	Transit	NASA Exoplanet Archive	Lam et al. 2017	2017
4.178062	d		Transit	NASA Exoplanet Archive	Palle et al. 2017	2017
4.178064	d	± 6.63e-07	Transit	NASA Exoplanet Archive	ExoFOP	2016

Semi-major axis 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.0484	au	± 0.00136	Transit	NASA Exoplanet Archive	Seidel et al. 2020	2020
0.052	au	± 0.0005	Transit	NASA Exoplanet Archive	Lam et al. 2017	2017

Eccentricity 4 values

Band / method	Source	Reference	Year
Transit	NASA Exoplanet Archive	Boehm et al. 2025	2025
Transit	NASA Exoplanet Archive	Wallack et al. 2021	2021
Transit	NASA Exoplanet Archive	Seidel et al. 2020	2020
Transit	NASA Exoplanet Archive	Palle et al. 2017	2017

Equilibrium temperature 3 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1,404	K	± 29	Transit	NASA Exoplanet Archive	Wallack et al. 2021	2021
1,400	K	± 24	Transit	NASA Exoplanet Archive	Lam et al. 2017	2017
1,313.74	K		Transit	NASA Exoplanet Archive	ExoFOP	2016

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
WASP-127	Star	0.003074″	—
BD-03 2978	EmLine*	0.3971″	10.17
BD-03 2978b	Planet	0.3971″	—
BD-03 2978B	Star	40.81″	11.05
BD-02 3203	Star	354.4″	10.59
G 55-37	HighPM*	456″	13.94
TYC 4916-831-1	HighPM*	475″	11.43

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