Registry · exoplanet

Kepler-68 b

Exoplanet

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 24m 07.75s
Declination: +49° 02′ 24.8″
Galactic l, b: 80.691, 15.15
Magnitude V: 10.08
Distance: 144.17 pc

Planet

NASA Exoplanet Archive, composite parameters

Host star	Kepler-68
Discovery	Transit, 2013 · Kepler
Orbital period	5.39875 d
Semi-major axis	0.06135 au
Eccentricity	0.09
Radius	2.357 R⊕ · 0.2103 R♃
Mass	8.03 M⊕ · 0.02527 M♃
Density	3.37 g/cm³
Equilibrium temperature	1,275 K
System distance	144.17 pc

Published measurements

6 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 6 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
8.440507	M_earth	± 1.469	Transit	NASA Exoplanet Archive	Weiss et al. 2024	2024
8.03	M_earth	± 0.67	Transit	NASA Exoplanet Archive	Bonomo et al. 2023	2023
7.65	M_earth	± 1.37	Transit	NASA Exoplanet Archive	Mills et al. 2019	2019
6.3566	M_earth	± 3.178	Transit	NASA Exoplanet Archive	Stassun et al. 2017	2017
5.97	M_earth	± 1.7	Transit	NASA Exoplanet Archive	Marcy et al. 2014	2014
8.3	M_earth	± 2.2	Transit	NASA Exoplanet Archive	Gilliland et al. 2013	2013

Radius 15 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
2.309	R_earth	± 0.054	Transit	NASA Exoplanet Archive	Weiss et al. 2024	2024
2.357	R_earth	± 0.023	Transit	NASA Exoplanet Archive	Bonomo et al. 2023	2023
2.309	R_earth	± 0.054	Transit	NASA Exoplanet Archive	Fulton & Petigura 2018	2018
2.32	R_earth	± 0.104	Transit	NASA Exoplanet Archive	Berger et al. 2018	2018
2.35389	R_earth	± 0.6725	Transit	NASA Exoplanet Archive	Stassun et al. 2017	2017
2.29	R_earth	± 0.07	Transit	NASA Exoplanet Archive	Morton et al. 2016	2016
2.354	R_earth	± 0.02	Transit	NASA Exoplanet Archive	Van Eylen & Albrecht 2015	2015
2.33	R_earth	± 0.02	Transit	NASA Exoplanet Archive	Marcy et al. 2014	2014
2.29	R_earth	± 0.03	Transit	NASA Exoplanet Archive	Q1-Q16 KOI Table	2013
2.31	R_earth	± 0.06	Transit	NASA Exoplanet Archive	Gilliland et al. 2013	2013
2.29	R_earth	± 0.03	Transit	NASA Exoplanet Archive	Q1-Q12 KOI Table	2013
2.25345	R_earth	± 0.1461	Transit	NASA Exoplanet Archive	ExoFOP	2013

Show the remaining 3

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
2.53	R_earth	± 0.05	Transit	NASA Exoplanet Archive	Q1-Q8 KOI Table	2013
2.21	R_earth	± 0.12	Transit	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2013
2.29	R_earth	± 0.03	Transit	NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2013

Orbital period 18 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
5.398754	d		Transit	NASA Exoplanet Archive	Weiss et al. 2024	2024
5.398753	d	± 5.20e-07	Transit	NASA Exoplanet Archive	Bonomo et al. 2023	2023
5.398753	d	± 5.23e-07	Transit	NASA Exoplanet Archive	Gajdo&scaron; et al. 2019	2019
5.3988	d		Transit	NASA Exoplanet Archive	Mills et al. 2019	2019
5.398754	d	± 1.84e-06	Transit	NASA Exoplanet Archive	Fulton & Petigura 2018	2018
5.39876	d	± 4.00e-06	Transit	NASA Exoplanet Archive	Stassun et al. 2017	2017
5.398754	d	± 1.84e-06	Transit	NASA Exoplanet Archive	Morton et al. 2016	2016
5.398753	d	± 3.20e-07	Transit	NASA Exoplanet Archive	Holczer et al. 2016	2016
5.398753	d	± 1.30e-06	Transit	NASA Exoplanet Archive	Van Eylen & Albrecht 2015	2015
5.39875	d		Transit	NASA Exoplanet Archive	Marcy et al. 2014	2014
5.398754	d	± 1.84e-06	Transit	NASA Exoplanet Archive	Q1-Q16 KOI Table	2013
5.398763	d	± 4.00e-06	Transit	NASA Exoplanet Archive	Gilliland et al. 2013	2013

Show the remaining 6

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
5.398753	d	± 1.95e-06	Transit	NASA Exoplanet Archive	Q1-Q17 DR25 Supplemental KOI Table	2013
5.398754	d	± 1.84e-06	Transit	NASA Exoplanet Archive	Q1-Q12 KOI Table	2013
5.398735	d	± 1.66e-05	Transit	NASA Exoplanet Archive	ExoFOP	2013
5.398766	d	± 7.10e-06	Transit	NASA Exoplanet Archive	Q1-Q8 KOI Table	2013
5.398753	d	± 1.95e-06	Transit	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2013
5.398754	d	± 1.84e-06	Transit	NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2013

Semi-major axis 9 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.06106018	au		Transit	NASA Exoplanet Archive	Weiss et al. 2024	2024
0.06135	au	± 0.00043	Transit	NASA Exoplanet Archive	Bonomo et al. 2023	2023
0.06109	au	± 0.00061	Transit	NASA Exoplanet Archive	Fulton & Petigura 2018	2018
0.0618	au		Transit	NASA Exoplanet Archive	Q1-Q16 KOI Table	2013
0.0617	au	± 0.00056	Transit	NASA Exoplanet Archive	Gilliland et al. 2013	2013
0.0618	au		Transit	NASA Exoplanet Archive	Q1-Q12 KOI Table	2013
0.062	au		Transit	NASA Exoplanet Archive	Q1-Q8 KOI Table	2013
0.0602	au		Transit	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2013
0.0618	au		Transit	NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2013

Eccentricity 11 values

Value	Uncertainty	Band / method	Source	Reference	Year
0		Transit	NASA Exoplanet Archive	Weiss et al. 2024	2024
0.09		Transit	NASA Exoplanet Archive	Bonomo et al. 2023	2023
0		Transit	NASA Exoplanet Archive	Mills et al. 2019	2019
0		Transit	NASA Exoplanet Archive	Stassun et al. 2017	2017
0.02	± 0.13	Transit	NASA Exoplanet Archive	Van Eylen & Albrecht 2015	2015
0		Transit	NASA Exoplanet Archive	Q1-Q16 KOI Table	2013
0		Transit	NASA Exoplanet Archive	Gilliland et al. 2013	2013
0		Transit	NASA Exoplanet Archive	Q1-Q12 KOI Table	2013
0		Transit	NASA Exoplanet Archive	Q1-Q8 KOI Table	2013
0		Transit	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2013
0		Transit	NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2013

Equilibrium temperature 8 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1,275	K	± 17	Transit	NASA Exoplanet Archive	Bonomo et al. 2023	2023
1,146	K		Transit	NASA Exoplanet Archive	Q1-Q16 KOI Table	2013
1,280	K	± 90	Transit	NASA Exoplanet Archive	Gilliland et al. 2013	2013
1,146	K		Transit	NASA Exoplanet Archive	Q1-Q12 KOI Table	2013
1,192	K		Transit	NASA Exoplanet Archive	ExoFOP	2013
1,143	K		Transit	NASA Exoplanet Archive	Q1-Q8 KOI Table	2013
1,140	K		Transit	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2013
1,146	K		Transit	NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2013

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Kepler-68	Star	0″	—
Kepler-68 c	Exoplanet	0″	10.08
Kepler-68 d	Exoplanet	0″	10.08
Kepler-68 e	Exoplanet	0″	10.08
BD+48 2893	Eruptive*	0.1976″	10.08
BD+48 2893d	Planet	0.1976″	—
BD+48 2893c	Planet	0.1976″	—
BD+48 2893b	Planet	0.1976″	—
2MASS J19240475+4903036	Star	48.69″	—
2MASS J19240329+4902471	Star	49.15″	—
2MASS J19240329+4903591	Star	104″	—

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-68-b · Registry entry updated 2026-08-14.