Key parameters at a glance
- A radius of 15.24 Earth radii
- A mass of 638.84 Earth masses
- Surface gravity around 2.75 g
- An orbital period of 1.545 days
- Semi-major axis 0.0274 AU
- Equilibrium temperature 2,140 K (1867 °C)
- Distance from Earth 2,684.13 light-years
- Earth Similarity Index 0.059
- Travel time at Voyager 1 speed 47,334,690 years
Kepler-76 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#213of 1771
top 12.0%
This planet
15.24R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-76 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 15.24 | 11.21 |
| Mass (M⊕) | 1.00 | 638.84 | 317.83 |
| Density (g/cm³) | 5.51 | 1.10 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.75 | 2.53 |
| Insolation (S⊕) | 1.00 | 3,583.67 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 638.838 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 636.000 M⊕ | Lower bound from radial-velocity fitting. |
| Computed mass | 650.000 M⊕ | Model-computed mass (e.g. from mass-radius relation). |
Star Catalogue Identifiers
TIC
TIC 138644215
Gaia DR2
Gaia DR2 2052441008208934144
Gaia DR3
Gaia DR3 2052441008208934144
System
Kepler-76
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.54 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0274 AU.
Transit Fingerprint
Depth
0.592 %
Duration
1.428 h
Impact parameter b
0.962
Rp / R★
0.103300
Transit midpoint (BJD)
2,454,966.5484
Photometric dip
Transit produces a flux drop of 5,915 ppm lasting ≈ 1.43 h.
Extended Orbital Architecture
Planet / star radius ratio
0.103300
Semi-major axis / stellar radius
4.464
Impact parameter (b)
0.962
RV semi-amplitude (K)
306.000 m/s
Occultation depth
0.013 ppm
Transit mid-time (BJD)
2,454,966.5484
Angular separation (arcsec)
0.03330
Eq. Temperature
2,140K
(1867 °C)
Insolation (S⊕)
3,583.67
Earth = 1.00
Earth Similarity (ESI)
0.059
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Orbital-brightness modulation
Host star brightness varies with the planet's orbit.
Discovery Paper
Primary reference
Faigler et al. 2013Instrument
Kepler CCD Array
Publication
2013-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2013 at Kepler (12 shown).
Host System: Kepler-76
Spectral Class
F-type yellow-white
Effective Temperature
6,409 K — hotter than the Sun (5,778 K)
Estimated Age
0.62 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.320 R☉
Stellar Mass
1.200 M☉
Metallicity [Fe/H]
-0.10
Extended Stellar Properties
Surface gravity (log g)
4.200 dex
Stellar density
0.967 g/cm³
Rotational v·sin i
6.50 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.186 mas
Total Proper Motion
2.574 mas/yr
PM Right Ascension
-0.49 mas/yr
PM Declination
-2.53 mas/yr
Galactic Cartesian (pc)
x = 0.316 · y = -0.703 · z = 0.638
Equatorial (J2000)
RA 294.19212° · Dec 39.61897°
Galactic ℓ, b
73.056° · 8.978°
Ecliptic λ, β
308.910° · 59.832°
HTM-20 index
1201210019
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