Key parameters at a glance
- A radius of 10.09 Earth radii
- A mass of 270.16 Earth masses
- Surface gravity around 2.65 g
- An orbital period of 2.851 days
- Semi-major axis 0.0386 AU
- Distance from Earth 2,630.47 light-years
- Earth Similarity Index 0.406
- Travel time at Voyager 1 speed 46,388,353 years
- Almost certainly tidally locked to its host star given the close orbit
CoRoT-29 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1765of 1771
top 99.6%
This planet
10.09R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | CoRoT-29 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.09 | 11.21 |
| Mass (M⊕) | 1.00 | 270.16 | 317.83 |
| Density (g/cm³) | 5.51 | 1.45 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.65 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 270.156 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 370736259
Gaia DR2
Gaia DR2 4285073581136130560
Gaia DR3
Gaia DR3 4285073581136130560
System
CoRoT-29
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.85 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0386 AU.
Transit Fingerprint
Duration
2.190 h
Impact parameter b
0.430
Rp / R★
0.102800
Transit midpoint (BJD)
2,455,753.1150
Extended Orbital Architecture
Planet / star radius ratio
0.102800
Semi-major axis / stellar radius
9.220
Impact parameter (b)
0.430
RV semi-amplitude (K)
125.000 m/s
Transit mid-time (BJD)
2,455,753.1150
Long. of periastron (ω)
87.00°
Angular separation (arcsec)
0.04790
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.406
0 = alien, 1 = Earth-identical
Insufficient insolation data. Close-orbiting tidally-locked around a cool host.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Cabrera et al. 2015Instrument
CoRoT CCD Array
Publication
2015-07
Observation locale
Space
Host System: CoRoT-29
Spectral Class
K-type orange
Effective Temperature
5,260 K — cooler than the Sun (5,778 K)
Estimated Age
4.50 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.900 R☉
Stellar Mass
0.970 M☉
Metallicity [Fe/H]
0.20
Extended Stellar Properties
Surface gravity (log g)
4.300 dex
Stellar density
1.825 g/cm³
Rotational v·sin i
3.50 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.216 mas
Total Proper Motion
14.855 mas/yr
PM Right Ascension
-3.77 mas/yr
PM Declination
-14.37 mas/yr
Galactic Cartesian (pc)
x = 0.154 · y = -0.982 · z = 0.113
Equatorial (J2000)
RA 278.90207° · Dec 6.47957°
Galactic ℓ, b
36.923° · 6.459°
Ecliptic λ, β
280.182° · 29.605°
HTM-20 index
1766247757
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