UPSA Object Registry
Registry · exoplanet

NGTS-4 b

Exoplanet 47 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
05h 58m 23.73s
Declination
−30° 48′ 42.5″
Galactic l, b
236.58, -24.14
Magnitude V
13.14
Distance
280.56 pc

Also known as

1 identifiers

NGTS-4b

Planet

NASA Exoplanet Archive, composite parameters
Host starNGTS-4
DiscoveryTransit, 2019 · Next-Generation Transit Survey (NGTS)
Orbital period1.33735 d
Semi-major axis0.019 au
Eccentricity0
Radius3.18 R⊕ · 0.2837 R♃
Mass20.6 M⊕ · 0.06481 M♃
Density3.45 g/cm³
Equilibrium temperature1,650 K
System distance280.56 pc

Recorded parameters

3 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mass 20.6 M_earth ± 3 Transit NASA Exoplanet Archive West et al. 2019
Semi-major axis 0.019 au ± 0.005 Transit NASA Exoplanet Archive West et al. 2019
Eccentricity 0 Transit NASA Exoplanet Archive West et al. 2019

Published measurements

3 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 3 values

ValueUnitUncertainty Band / methodSourceReferenceYear
3.186409 R_earth ± 0.3811 Transit NASA Exoplanet Archive Lafarga et al. 2026 2026
3.026579 R_earth ± 3.731 Transit NASA Exoplanet Archive ExoFOP 2019
3.18 R_earth ± 0.26 Transit NASA Exoplanet Archive West et al. 2019 2019

Orbital period 4 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1.337346 d ± 7.30e-06 Transit NASA Exoplanet Archive Lafarga et al. 2026 2026
1.337351 d ± 6.70e-06 Transit NASA Exoplanet Archive Patel & Espinoza 2022 2022
1.337235 d ± 0.0001162 Transit NASA Exoplanet Archive ExoFOP 2019
1.337351 d ± 8.00e-06 Transit NASA Exoplanet Archive West et al. 2019 2019

Equilibrium temperature 2 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1,391.87 K Transit NASA Exoplanet Archive ExoFOP 2019
1,650 K ± 400 Transit NASA Exoplanet Archive West et al. 2019 2019

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
NGTS-4 Star 0.2849″ 13.12
LEDA 178759 Seyfert2 234.4″ —
UCAC4 296-008872 Star 282.8″ 12.25
TYC 7058-558-1 Star 414.4″ 11.29
LP 894-3 SB* 524.2″ 11.34

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/ngts-4-b · Registry entry updated 2026-08-14.