UPSA Object Registry
Registry · exoplanet

Kepler-442 b

Exoplanet 50 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
19h 01m 27.98s
Declination
+39° 16′ 48.3″
Galactic l, b
69.75, 14.98
Magnitude V
15.32
Distance
365.96 pc

Also known as

1 identifiers

Kepler-442b

Planet

NASA Exoplanet Archive, composite parameters
Host starKepler-442
DiscoveryTransit, 2015 · Kepler
Orbital period112.305 d
Semi-major axis0.409 au
Eccentricity0.04
Radius1.34 R⊕ · 0.12 R♃
Mass2.36 M⊕ · 0.00742 M♃
Density5.39 g/cm³
Equilibrium temperature241 K
System distance365.96 pc

Published measurements

5 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 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1.395 R_earth ± 0.101 Transit NASA Exoplanet Archive Berger et al. 2018 2018
1.59 R_earth ± 0.11 Transit NASA Exoplanet Archive Morton et al. 2016 2016
1.56 R_earth ± 0.14 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2015
1.34 R_earth ± 0.11 Transit NASA Exoplanet Archive Torres et al. 2015 2015
1.3 R_earth ± 0.07 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2015
1.56 R_earth ± 0.14 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2015
1.56 R_earth ± 0.14 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2015

Orbital period 9 values

ValueUnitUncertainty Band / methodSourceReferenceYear
112.3034 d ± 0.0005662 Transit NASA Exoplanet Archive Gajdoš et al. 2019 2019
112.3068 d ± 0.002432 Transit NASA Exoplanet Archive Morton et al. 2016 2016
112.299 d ± 3.36e-05 Transit NASA Exoplanet Archive Holczer et al. 2016 2016
112.3068 d ± 0.002432 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2015
112.3053 d ± 0.0024 Transit NASA Exoplanet Archive Torres et al. 2015 2015
112.3031 d ± 0.001722 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2015
112.3031 d ± 0.001722 Transit NASA Exoplanet Archive Q1-Q17 DR25 Supplemental KOI Table 2015
112.3068 d ± 0.002432 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2015
112.3068 d ± 0.002432 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2015

Semi-major axis 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.393 au Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2015
0.409 au ± 0.209 Transit NASA Exoplanet Archive Torres et al. 2015 2015
0.3874 au Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2015
0.393 au Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2015
0.393 au Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2015

Eccentricity 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2015
0.04 ± 0.08 Transit NASA Exoplanet Archive Torres et al. 2015 2015
0 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2015
0 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2015
0 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2015

Equilibrium temperature 4 values

ValueUnitUncertainty Band / methodSourceReferenceYear
260 K Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2015
241 K Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2015
260 K Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2015
260 K Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2015

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Kepler-442 Star 0.1242″ —
2MASS J19012328+3915557 Star 75.86″ —
Gaia DR3 2100257939962821376 WhiteDwarf 84.4″ —
2MASS J19011920+3916163 Star 106.9″ —
2MASS J19011680+3917384 delSctV* 139.1″ —
2MASS J19013600+3918457 Star 149.8″ —
TYC 3120-1873-1 Star 182.6″ 12.1
2MASS J19012286+3913509 Star 187.1″ —
2MASS J19011176+3915308 Star 203.7″ —
UCAC2 45529931 delSctV* 248.5″ —
UCAC4 647-064053 RGB* 258.5″ —

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/kepler-442-b · Registry entry updated 2026-08-14.