UPSA Object Registry
Registry · exoplanet

Kepler-194 d

Exoplanet 20 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 27m 53.14s
Declination
+47° 51′ 50.6″
Galactic l, b
79.854, 14.1
Magnitude V
14.97
Distance
1,098 pc

Also known as

1 identifiers

Kepler-194d

Planet

NASA Exoplanet Archive, composite parameters
Host starKepler-194 · G3
DiscoveryTransit, 2014 · Kepler
Orbital period52.815 d
Semi-major axis0.275 au
Eccentricity0
Radius2.4 R⊕ · 0.214 R♃
Mass6.35 M⊕ · 0.02 M♃
Density2.52 g/cm³
Equilibrium temperature562 K
System distance1,098 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 9 values

ValueUnitUncertainty Band / methodSourceReferenceYear
2.334 R_earth ± 0.158 Transit NASA Exoplanet Archive Berger et al. 2018 2018
2.357 R_earth ± 0.112 Transit NASA Exoplanet Archive Fulton & Petigura 2018 2018
2.67 R_earth ± 0.67 Transit NASA Exoplanet Archive Morton et al. 2016 2016
2.41 R_earth ± 0.9 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
2.4 R_earth ± 1.26 Transit NASA Exoplanet Archive Rowe et al. 2014 2014
3.33 R_earth ± 0.53 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
2.43 R_earth ± 0.89 Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
2.41 R_earth ± 0.9 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
2.41 R_earth ± 0.9 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014

Orbital period 11 values

ValueUnitUncertainty Band / methodSourceReferenceYear
52.81503 d ± 0.0003838 Transit NASA Exoplanet Archive Gajdoš et al. 2019 2019
52.81473 d ± 0.0003467 Transit NASA Exoplanet Archive Fulton & Petigura 2018 2018
52.81479 d ± 5.33e-06 Transit NASA Exoplanet Archive Holczer et al. 2016 2016
52.81473 d ± 0.0003467 Transit NASA Exoplanet Archive Morton et al. 2016 2016
52.81473 d ± 0.0003467 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
52.81497 d ± 0.000481 Transit NASA Exoplanet Archive Rowe et al. 2014 2014
52.81481 d ± 0.0003846 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
52.81476 d ± 0.00086 Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
52.81473 d ± 0.0003467 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
52.81473 d ± 0.0003467 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014
52.81481 d ± 0.0003846 Transit NASA Exoplanet Archive Q1-Q17 DR25 Supplemental KOI Table 2014

Semi-major axis 7 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.2699 au ± 0.00329 Transit NASA Exoplanet Archive Fulton & Petigura 2018 2018
0.2722 au Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
0.275 au Transit NASA Exoplanet Archive Rowe et al. 2014 2014
0.2746 au Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
0.28 au Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
0.2722 au Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
0.2722 au Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014

Eccentricity 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
0 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
0 Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
0 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
0 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014

Equilibrium temperature 5 values

ValueUnitUncertainty Band / methodSourceReferenceYear
516 K Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
562 K Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
518 K Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
516 K Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
516 K Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Kepler-194 c Exoplanet 0″ 14.97
Kepler-194 b Exoplanet 0″ 14.97
Kepler-194 Star 0.3906″ —
ZTF J192758.56+475351.6 RSCVnV* 132.8″ —
2MASS J19273922+4753295 Star 171.5″ —
2MASS J19274866+4748597 Star 176.7″ —
2MASS J19274383+4749181 Star 178.9″ —
UCAC4 690-068097 RGB* 180.5″ 13.99
2MASS J19281260+4754118 Star 241.4″ —
UCAC4 690-068058 RGB* 260.4″ 13.76
IRAS 19259+4746 AGB* Candidate 317.9″ 11.52

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-194-d · Registry entry updated 2026-08-14.