Key parameters at a glance
- A radius of 3.70 Earth radii
- A mass of 5.70 Earth masses
- Surface gravity around 0.42 g
- An orbital period of 5.113 days
- Semi-major axis 0.0560 AU
- Equilibrium temperature 1,070 K (797 °C)
- Distance from Earth 1,929.39 light-years
- Earth Similarity Index 0.187
- Travel time at Voyager 1 speed 34,024,828 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around CoRoT-24
CoRoT-24 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| CoRoT-24 b this | Sub-Neptune | 3.70 | 5.70 | 5.113 | 1,070 | 2014 |
| CoRoT-24 c | Neptune-like | 5.00 | 28.00 | 11.759 | 850 | 2014 |
CoRoT-24 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#90of 1978
top 4.5%
This planet
3.70R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | CoRoT-24 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.70 | 11.21 |
| Mass (M⊕) | 1.00 | 5.70 | 317.83 |
| Density (g/cm³) | 5.51 | 0.90 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.42 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 5.700 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 36105482
Gaia DR2
Gaia DR2 3105404467618982272
Gaia DR3
Gaia DR3 3105404467618982272
System
CoRoT-24
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 5.11 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0560 AU.
Transit Fingerprint
Duration
2.850 h
Impact parameter b
0.650
Rp / R★
0.037000
Transit midpoint (BJD)
2,454,789.6110
Extended Orbital Architecture
Planet / star radius ratio
0.037000
Semi-major axis / stellar radius
10.900
Impact parameter (b)
0.650
RV semi-amplitude (K)
2.100 m/s
Transit mid-time (BJD)
2,454,789.6110
Angular separation (arcsec)
0.09470
Eq. Temperature
1,070K
(797 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.187
0 = alien, 1 = Earth-identical
Insufficient insolation data — the dayside is scorched. 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
Alonso et al. 2014Instrument
CoRoT CCD Array
Publication
2014-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at CoRoT (3 shown).
Host System: CoRoT-24
Spectral Class
K-type orange
Effective Temperature
4,950 K — cooler than the Sun (5,778 K)
Estimated Age
11.00 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.860 R☉
Stellar Mass
0.910 M☉
Metallicity [Fe/H]
0.30
Extended Stellar Properties
Surface gravity (log g)
4.550 dex
Stellar density
1.949 g/cm³
Systemic radial velocity
51.37 km/s
Rotational v·sin i
2.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.663 mas
Total Proper Motion
3.043 mas/yr
PM Right Ascension
-1.29 mas/yr
PM Declination
2.75 mas/yr
Galactic Cartesian (pc)
x = -0.206 · y = 0.976 · z = -0.065
Equatorial (J2000)
RA 101.92254° · Dec -3.71929°
Galactic ℓ, b
215.817° · -2.528°
Ecliptic λ, β
103.327° · -26.609°
HTM-20 index
1708195915
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