Registry · exoplanet

Kepler-47 c

Exoplanet 81 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 41m 11.49s
Declination: +46° 55′ 13.5″
Galactic l, b: 80.007, 11.66
Magnitude V: 15.31
Distance: 1,025 pc

Also known as

1 identifiers

Kepler-47c

Planet

NASA Exoplanet Archive, composite parameters

Host star	Kepler-47
Discovery	Transit, 2012 · Kepler
Orbital period	303.227 d
Semi-major axis	0.9638 au
Eccentricity	0.044
Radius	4.65 R⊕ · 0.4148 R♃
Mass	3.17 M⊕ · 0.009974 M♃
Density	0.17 g/cm³
Equilibrium temperature	267.82 K
System distance	1,025 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.

Mass 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
3.17	M_earth	± 2.18	Transit	NASA Exoplanet Archive	Orosz et al. 2019	2019
8,899	M_earth		Transit	NASA Exoplanet Archive	Orosz et al. 2012	2012

Radius 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
4.65	R_earth	± 0.09	Transit	NASA Exoplanet Archive	Orosz et al. 2019	2019
4.62	R_earth	± 0.2	Transit	NASA Exoplanet Archive	Orosz et al. 2012	2012

Orbital period 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
303.227	d	± 0.062	Transit	NASA Exoplanet Archive	Orosz et al. 2019	2019
303.137	d	± 0.072	Transit	NASA Exoplanet Archive	Orosz et al. 2012	2012

Semi-major axis 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.9638	au	± 0.0041	Transit	NASA Exoplanet Archive	Orosz et al. 2019	2019
0.991	au	± 0.015	Transit	NASA Exoplanet Archive	Orosz et al. 2012	2012

Eccentricity 2 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.044		± 0.029	Transit	NASA Exoplanet Archive	Orosz et al. 2019	2019
0.411			Transit	NASA Exoplanet Archive	Orosz et al. 2012	2012

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Kepler-47 d	Exoplanet	0″	15.31
Kepler-47 b	Exoplanet	0″	15.31
Kepler-47	EclBin	0.1668″	—
ATO J295.2342+46.9412	EclBin	173.6″	—
TYC 3556-3256-1	Star	191.3″	11.54
UCAC4 685-070562	HighPM*	206.2″	—
2MASS J19410164+4658340	Star	224.4″	—
2MASS J19412197+4651433	Star	236.2″	—
2MASS J19411644+4650599	Star	258.6″	—
BD+46 2754	EmLine*	310.5″	10.03
ATO J295.2511+47.0024	EclBin	316.7″	—

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/kepler-47-c · Registry entry updated 2026-08-14.