Key parameters at a glance
- A radius of 1.67 Earth radii
- A mass of 293.96 Earth masses
- Surface gravity around 105.40 g
- An orbital period of 4.244 days
- Semi-major axis 0.0510 AU
- Equilibrium temperature 1,305 K (1032 °C)
- Distance from Earth 3,773.01 light-years
- Earth Similarity Index 0.081
- Travel time at Voyager 1 speed 66,536,943 years
3 siblings around Kepler-24
Kepler-24 d shares its host star with 3 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-24 d this | Super-Earth | 1.67 | 293.96 | 4.244 | 1,305 | 2014 |
| Kepler-24 b | Sub-Neptune | 2.35 | 11.14 | 8.140 | 1,050 | 2011 |
| Kepler-24 c | Sub-Neptune | 2.51 | 9.99 | 12.330 | 915 | 2011 |
| Kepler-24 e | Sub-Neptune | 2.78 | 26.21 | 18.998 | 792 | 2014 |
Kepler-24 d Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#452of 1176
top 38.4%
This planet
1.67R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-24 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.67 | 11.21 |
| Mass (M⊕) | 1.00 | 293.96 | 317.83 |
| Density (g/cm³) | 5.51 | 152.00 | 1.33 |
| Surface Gravity (g) | 1.00 | 105.40 | 2.53 |
| Insolation (S⊕) | 1.00 | 601.90 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 293.959 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 122376177
Gaia DR2
Gaia DR2 2052823535171095296
Gaia DR3
Gaia DR3 2052823535171095296
System
Kepler-24
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 4.24 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0510 AU.
Transit Fingerprint
Depth
0.020 %
Duration
2.945 h
Impact parameter b
0.290
Rp / R★
0.012319
Transit midpoint (BJD)
2,454,970.0641
Photometric dip
Transit produces a flux drop of 202 ppm lasting ≈ 2.95 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012319
Semi-major axis / stellar radius
10.897
Impact parameter (b)
0.290
Transit mid-time (BJD)
2,454,970.0641
Angular separation (arcsec)
0.04410
Eq. Temperature
1,305K
(1032 °C)
Insolation (S⊕)
601.90
Earth = 1.00
Earth Similarity (ESI)
0.081
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-24
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,897 K — hotter than the Sun (5,778 K)
Estimated Age
3.02 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.289 R☉
Stellar Mass
1.046 M☉
Metallicity [Fe/H]
-0.07
Extended Stellar Properties
Surface gravity (log g)
4.200 dex
Stellar density
0.011 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.836 mas
Total Proper Motion
2.879 mas/yr
PM Right Ascension
-2.23 mas/yr
PM Declination
-1.82 mas/yr
Galactic Cartesian (pc)
x = 0.274 · y = -0.735 · z = 0.620
Equatorial (J2000)
RA 290.41326° · Dec 38.34373°
Galactic ℓ, b
70.550° · 11.018°
Ecliptic λ, β
302.604° · 59.493°
HTM-20 index
1799876032
Similar Worlds
Kepler-300 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.67 R⊕ · 3,582.7 ly
Kepler-288 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.67 R⊕ · 3,894.8 ly
Kepler-322 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.67 R⊕ · 1,306.2 ly
Kepler-1476 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.67 R⊕ · 3,270.5 ly
Kepler-1252 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.67 R⊕ · 2,116.7 ly
Kepler-1123 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.67 R⊕ · 2,297.2 ly