Registry · exoplanet

CoRoT-2 b

Exoplanet 258 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 06.49s
Declination: +01° 23′ 01.2″
Galactic l, b: 38.263, -7.291
Magnitude V: 12.52
Distance: 213.28 pc

Also known as

1 identifiers

CoRoT-2b

Planet

NASA Exoplanet Archive, composite parameters

Host star	CoRoT-2 · G7V+K9V
Discovery	Transit, 2008 · CoRoT
Orbital period	1.74299 d
Semi-major axis	0.02798 au
Eccentricity	0.0143
Radius	16.432 R⊕ · 1.466 R♃
Mass	1,102.8 M⊕ · 3.47 M♃
Density	1.47 g/cm³
Equilibrium temperature	1,521 K
System distance	213.28 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
1,052.017	M_earth	± 50.85	Transit	NASA Exoplanet Archive	Öztürk & Erdem 2019	2019
1,048.839	M_earth	± 60.39	Transit	NASA Exoplanet Archive	Bonomo et al. 2017	2017
1,134.653	M_earth	± 50.85	Transit	NASA Exoplanet Archive	Southworth 2012	2012
1,150.545	M_earth	± 50.85	Transit	NASA Exoplanet Archive	Southworth 2011	2011
1,102.82	M_earth	± 69.92	Transit	NASA Exoplanet Archive	Gillon et al. 2010	2010
1,051.973	M_earth	± 50.85	Transit	NASA Exoplanet Archive	Alonso et al. 2008	2008

Radius 8 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
15.84953	R_earth	± 0.7174	Transit	NASA Exoplanet Archive	Öztürk & Erdem 2019	2019
16.43239	R_earth	± 0.4708	Transit	NASA Exoplanet Archive	Bonomo et al. 2017	2017
16.53327	R_earth	± 0.3475	Transit	NASA Exoplanet Archive	Bruno et al. 2016	2016
16.36514	R_earth	± 0.3475	Transit	NASA Exoplanet Archive	Southworth 2012	2012
16.47723	R_earth	± 0.3587	Transit	NASA Exoplanet Archive	Southworth 2011	2011
16.432	R_earth	± 0.471	Transit	NASA Exoplanet Archive	Gillon et al. 2010	2010
16.42116	R_earth	± 0.3251	Transit	NASA Exoplanet Archive	Alonso et al. 2008	2008
16.92271	R_earth	± 1.717	Transit	NASA Exoplanet Archive	ExoFOP	2008

Orbital period 13 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1.742998	d	± 4.05e-08	Transit	NASA Exoplanet Archive	Sodickson & Grunblatt 2025	2025
1.742997	d	± 1.50e-07	Transit	NASA Exoplanet Archive	Kokori et al. 2023	2023
1.742997	d	± 1.10e-07	Transit	NASA Exoplanet Archive	Kokori et al. 2022	2022
1.742999	d	± 4.00e-07	Transit	NASA Exoplanet Archive	Ivshina & Winn 2022	2022
1.742997	d	± 2.00e-07	Transit	NASA Exoplanet Archive	Öztürk & Erdem 2019	2019
1.742997	d	± 3.10e-07	Transit	NASA Exoplanet Archive	Bonomo et al. 2017	2017
1.742996	d	± 5.90e-07	Transit	NASA Exoplanet Archive	Bruno et al. 2016	2016
1.742997	d	± 3.10e-07	Transit	NASA Exoplanet Archive	Baluev et al. 2015	2015
1.742994	d	± 1.00e-06	Transit	NASA Exoplanet Archive	Southworth 2012	2012
1.742994	d	± 1.00e-06	Transit	NASA Exoplanet Archive	Southworth 2011	2011
1.742994	d	± 1.00e-06	Transit	NASA Exoplanet Archive	Gillon et al. 2010	2010
1.742996	d	± 1.70e-06	Transit	NASA Exoplanet Archive	Alonso et al. 2008	2008

Show the remaining 1

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1.743014	d	± 4.38e-05	Transit	NASA Exoplanet Archive	ExoFOP	2008

Semi-major axis 5 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
0.0281	au	± 0.00057	Transit	NASA Exoplanet Archive	Bonomo et al. 2017	2017
0.02835	au	± 0.00047	Transit	NASA Exoplanet Archive	Southworth 2012	2012
0.02854	au	± 0.00048	Transit	NASA Exoplanet Archive	Southworth 2011	2011
0.02798	au	± 0.00076	Transit	NASA Exoplanet Archive	Gillon et al. 2010	2010
0.0281	au	± 0.0009	Transit	NASA Exoplanet Archive	Alonso et al. 2008	2008

Eccentricity 4 values

Value	Uncertainty	Band / method	Source	Reference	Year
0		Transit	NASA Exoplanet Archive	Öztürk & Erdem 2019	2019
0.024		Transit	NASA Exoplanet Archive	Bonomo et al. 2017	2017
0.0143	± 0.0077	Transit	NASA Exoplanet Archive	Gillon et al. 2010	2010
0		Transit	NASA Exoplanet Archive	Alonso et al. 2008	2008

Equilibrium temperature 4 values

Value	Unit	Uncertainty	Band / method	Source	Reference	Year
1,535	K	± 21	Transit	NASA Exoplanet Archive	Öztürk & Erdem 2019	2019
1,521	K	± 18	Transit	NASA Exoplanet Archive	Southworth 2012	2012
1,548	K	± 22	Transit	NASA Exoplanet Archive	Southworth 2011	2011
1,409.55	K		Transit	NASA Exoplanet Archive	ExoFOP	2008

In the same field

within 9 arcmin · wider search

Object	Type	Separation	V
CoRoT-2	Star	0.1794″	12.57
CoRoT-2B	Star	3.914″	—
2MASS J19271030+0124366	RGB*	111.3″	14.91
GES J19270382+0124588	SB* Candidate	124.3″	—
2MASS J19270430+0120124	RGB*	171.9″	15.04
CoRoT 101183660	EclBin	173.7″	14.5
CoRoT 101200044	RGB*	176.8″	14.41
GES J19265807+0120436	SB* Candidate	186.7″	—
CoRoT 101223383	Variable*	207.2″	14.93
CoRoT 101254950	Variable*	277.8″	14.32
CoRoT 101226184	RGB*	283.3″	15.03

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/corot-2-b · Registry entry updated 2026-08-14.