UPSA Object Registry
Registry · exoplanet

Kepler-186 d

Exoplanet 38 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 54m 36.66s
Declination
+43° 57′ 18.0″
Galactic l, b
78.52, 8.171
Magnitude V
15.14
Distance
177.59 pc

Also known as

1 identifiers

Kepler-186d

Planet

NASA Exoplanet Archive, composite parameters
Host starKepler-186 · M1V
DiscoveryTransit, 2014 · Kepler
Orbital period13.343 d
Semi-major axis0.0781 au
Eccentricity0
Radius1.4 R⊕ · 0.125 R♃
Mass2.54 M⊕ · 0.008 M♃
Density5.09 g/cm³
Equilibrium temperature379 K
System distance177.59 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 14 values

ValueUnitUncertainty Band / methodSourceReferenceYear
1.55 R_earth ± 0.06 Transit NASA Exoplanet Archive Gaidos et al. 2024 2024
1.568 R_earth ± 0.221 Transit NASA Exoplanet Archive Berger et al. 2018 2018
1.61 R_earth ± 0.1 Transit NASA Exoplanet Archive Morton et al. 2016 2016
1.28 R_earth ± 0.18 Transit NASA Exoplanet Archive Dressing & Charbonneau 2015 2015
1.81 R_earth ± 0.11 Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
1.53 R_earth ± 0.2 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
1.53 R_earth ± 0.2 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
1.29 R_earth ± 0.12 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
1.53 R_earth ± 0.2 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014
1.56 R_earth ± 0.16 Transit NASA Exoplanet Archive Rowe et al. 2014 2014
1.4 R_earth ± 0.16 Transit NASA Exoplanet Archive Quintana et al. 2014 2014
1.738 R_earth ± 0.106 Transit NASA Exoplanet Archive Mann et al. 2013 2013
Show the remaining 2
ValueUnitUncertainty Band / methodSourceReferenceYear
1.68 R_earth ± 0.17 Transit NASA Exoplanet Archive Dressing & Charbonneau 2013 2013
1.41 R_earth ± 0.17 Transit NASA Exoplanet Archive Muirhead et al. 2012 2012

Orbital period 15 values

ValueUnitUncertainty Band / methodSourceReferenceYear
13.34 d Transit NASA Exoplanet Archive Gaidos et al. 2024 2024
13.34305 d ± 2.10e-05 Transit NASA Exoplanet Archive Gajdoš et al. 2019 2019
13.34303 d ± 2.31e-06 Transit NASA Exoplanet Archive Holczer et al. 2016 2016
13.34301 d ± 2.40e-05 Transit NASA Exoplanet Archive Morton et al. 2016 2016
13.34295 d ± 4.45e-05 Transit NASA Exoplanet Archive Dressing & Charbonneau 2015 2015
13.34303 d ± 3.20e-05 Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
13.343 d ± 2.57e-05 Transit NASA Exoplanet Archive Q1-Q17 DR25 Supplemental KOI Table 2014
13.34301 d ± 2.40e-05 Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
13.34301 d ± 2.40e-05 Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
13.343 d ± 2.57e-05 Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
13.34301 d ± 2.40e-05 Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014
13.34306 d ± 4.10e-05 Transit NASA Exoplanet Archive Rowe et al. 2014 2014
Show the remaining 3
ValueUnitUncertainty Band / methodSourceReferenceYear
13.343 d ± 2.50e-05 Transit NASA Exoplanet Archive Quintana et al. 2014 2014
13.343 d Transit NASA Exoplanet Archive Dressing & Charbonneau 2013 2013
13.34331 d ± 0.00015 Transit NASA Exoplanet Archive Muirhead et al. 2012 2012

Semi-major axis 8 values

ValueUnitUncertainty Band / methodSourceReferenceYear
0.09 au Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
0.0862 au Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
0.0862 au Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
0.0845 au Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
0.0862 au Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014
0.091 au Transit NASA Exoplanet Archive Rowe et al. 2014 2014
0.0781 au ± 0.01 Transit NASA Exoplanet Archive Quintana et al. 2014 2014
0.08642 au ± 0.00334 Transit NASA Exoplanet Archive Muirhead et al. 2012 2012

Eccentricity 5 values

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

Equilibrium temperature 6 values

ValueUnitUncertainty Band / methodSourceReferenceYear
429 K Transit NASA Exoplanet Archive Q1-Q8 KOI Table 2014
383 K Transit NASA Exoplanet Archive Q1-Q12 KOI Table 2014
383 K Transit NASA Exoplanet Archive Q1-Q16 KOI Table 2014
379 K Transit NASA Exoplanet Archive Q1-Q17 DR25 KOI Table 2014
383 K Transit NASA Exoplanet Archive Q1-Q17 DR24 KOI Table 2014
384 K Transit NASA Exoplanet Archive Muirhead et al. 2012 2012

In the same field

within 9 arcmin · wider search
ObjectTypeSeparationV
Kepler-186 f Exoplanet 0″ 15.14
Kepler-186 b Exoplanet 0″ 15.14
Kepler-186 c Exoplanet 0″ 15.14
Kepler-186 e Exoplanet 0″ 15.14
Kepler-186 Eruptive* 0.07566″ 15.29
PSR J1954+4347 Pulsar 27.49″ —
ASAS J195438+4355.8 LongPeriodV* 91.04″ 15.56
2MASS J19542670+4357094 Star 107.8″ —
KOI-6971.01 Planet Candidate 144.9″ —
KOI-6971 Star 144.9″ —
ASAS J195452+4358.0 LongPeriodV* 170.3″ 14.48

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-186-d · Registry entry updated 2026-08-14.