Registry · deep sky

Kepler-20

Star SIMBAD * G5V 207 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 10m 47.52s
Declination: +42° 20′ 19.3″
Galactic l, b: 73.377, 14.57
Magnitude V: 12.63
Parallax: 3.4936 mas
Redshift z: -7.331e-05
Radial velocity: -21.98 km/s
Proper motion: -3.869, -27.11 mas/yr

Also known as

1 identifiers

Kepler-20

Published measurements

3 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 13 values

Value	Unit	Uncertainty	Source	Reference	Year
0.942	M_sun	± 0.0205	NASA Exoplanet Archive	Weiss et al. 2024	2024
0.929	M_sun	± 0.053	NASA Exoplanet Archive	Bonomo et al. 2023	2023
0.942	M_sun	± 0.02	NASA Exoplanet Archive	Fulton & Petigura 2018	2018
0.96	M_sun	± 0.1111	NASA Exoplanet Archive	TICv8	2016
0.95	M_sun	± 0.035	NASA Exoplanet Archive	Morton et al. 2016	2016
0.948	M_sun	± 0.051	NASA Exoplanet Archive	Buchhave et al. 2016	2016
0.912	M_sun	± 0.034	NASA Exoplanet Archive	Gautier et al. 2012	2012
0.912	M_sun	± 0.035	NASA Exoplanet Archive	Fressin et al. 2012	2012
0.876	M_sun	± 0.06	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2011
0.876	M_sun	± 0.062	NASA Exoplanet Archive	Q1-Q16 KOI Table	2011
0.876	M_sun	± 0.062	NASA Exoplanet Archive	Q1-Q12 KOI Table	2011
0.901	M_sun	± 0.022	NASA Exoplanet Archive	Q1-Q8 KOI Table	2011

Show the remaining 1

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.876	M_sun	± 0.062		NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2011

Radius 13 values

Value	Unit	Uncertainty	Source	Reference	Year
0.9164	R_sun	± 0.0087	NASA Exoplanet Archive	Bonomo et al. 2023	2023
0.887	R_sun	± 0.037	NASA Exoplanet Archive	Berger et al. 2018	2018
0.88	R_sun	± 0.021	NASA Exoplanet Archive	Fulton & Petigura 2018	2018
0.914982	R_sun	± 0.06104	NASA Exoplanet Archive	TICv8	2016
0.93	R_sun	± 0.07	NASA Exoplanet Archive	Morton et al. 2016	2016
0.9639	R_sun	± 0.0177	NASA Exoplanet Archive	Buchhave et al. 2016	2016
0.944	R_sun	± 0.06	NASA Exoplanet Archive	Gautier et al. 2012	2012
0.944	R_sun	± 0.06	NASA Exoplanet Archive	Fressin et al. 2012	2012
0.925	R_sun	± 0.101	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2011
0.925	R_sun	± 0.163	NASA Exoplanet Archive	Q1-Q16 KOI Table	2011
0.925	R_sun	± 0.163	NASA Exoplanet Archive	Q1-Q12 KOI Table	2011
0.939	R_sun	± 0.077	NASA Exoplanet Archive	Q1-Q8 KOI Table	2011

Show the remaining 1

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.925	R_sun	± 0.163		NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2011

Effective temperature 13 values

Value	Unit	Uncertainty	Source	Reference	Year
5,495	K	± 50	NASA Exoplanet Archive	Bonomo et al. 2023	2023
5,508	K	± 110	NASA Exoplanet Archive	Berger et al. 2018	2018
5,508	K	± 60	NASA Exoplanet Archive	Fulton & Petigura 2018	2018
5,489	K	± 119.7	NASA Exoplanet Archive	TICv8	2016
5,569	K	± 82.21	NASA Exoplanet Archive	Morton et al. 2016	2016
5,495	K	± 50	NASA Exoplanet Archive	Buchhave et al. 2016	2016
5,455	K	± 100	NASA Exoplanet Archive	Gautier et al. 2012	2012
5,466	K	± 93	NASA Exoplanet Archive	Fressin et al. 2012	2012
5,465	K	± 109	NASA Exoplanet Archive	Q1-Q17 DR25 KOI Table	2011
5,465	K	± 110	NASA Exoplanet Archive	Q1-Q16 KOI Table	2011
5,465	K	± 110	NASA Exoplanet Archive	Q1-Q12 KOI Table	2011
5,443	K	± 44	NASA Exoplanet Archive	Q1-Q8 KOI Table	2011

Show the remaining 1

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
5,465	K	± 110		NASA Exoplanet Archive	Q1-Q17 DR24 KOI Table	2011

Related objects

Object	Type	Relation
Kepler-20 b	Exoplanet	host
Kepler-20 c	Exoplanet	host
Kepler-20 d	Exoplanet	host
Kepler-20 e	Exoplanet	host
Kepler-20 f	Exoplanet	host
Kepler-20 g	Exoplanet	host

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
Kepler-20 c	Exoplanet	0.4242″	12.61
Kepler-20 g	Exoplanet	0.4242″	12.61
Kepler-20 f	Exoplanet	0.4242″	12.61
Kepler-20 e	Exoplanet	0.4242″	12.61
Kepler-20 b	Exoplanet	0.4242″	12.61
Kepler-20 d	Exoplanet	0.4242″	12.61
TYC 3129-770-1	Star	19.42″	11.56
TYC 3129-1100-1	RGB*	114.1″	11.13
TYC 3129-518-1	HorBranch*	135.2″	11.2
2MASS J19104137+4222179	Star	136.7″	—
2MASS J19103219+4221400	Star	188.1″	—

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-20-6326992 · Registry entry updated 2026-08-14.