Key parameters at a glance
- A radius of 15.03 Earth radii
- A mass of 299.08 Earth masses
- Surface gravity around 1.32 g
- An orbital period of 1.721 days
- Semi-major axis 0.0290 AU
- Equilibrium temperature 1,850 K (1577 °C)
- Distance from Earth 3,542.84 light-years
- Earth Similarity Index 0.063
- Travel time at Voyager 1 speed 62,477,926 years
Kepler-412 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#229of 1771
top 12.9%
This planet
15.03R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-412 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 15.03 | 11.21 |
| Mass (M⊕) | 1.00 | 299.08 | 317.83 |
| Density (g/cm³) | 5.51 | 0.52 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.32 | 2.53 |
| Insolation (S⊕) | 1.00 | 2,144.31 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 299.078 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 158170594
Gaia DR2
Gaia DR2 2105678089908733824
Gaia DR3
Gaia DR3 2105678089908733824
System
Kepler-412
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.72 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0290 AU.
Transit Fingerprint
Depth
1.054 %
Duration
2.035 h
Impact parameter b
0.794
Rp / R★
0.104740
Transit midpoint (BJD)
2,454,966.0212
Photometric dip
Transit produces a flux drop of 10,541 ppm lasting ≈ 2.03 h.
Extended Orbital Architecture
Planet / star radius ratio
0.104740
Semi-major axis / stellar radius
4.841
Impact parameter (b)
0.794
RV semi-amplitude (K)
142.000 m/s
Occultation depth
0.005 ppm
Transit mid-time (BJD)
2,454,966.0212
Long. of periastron (ω)
125.00°
Angular separation (arcsec)
0.02670
Eq. Temperature
1,850K
(1577 °C)
Insolation (S⊕)
2,144.31
Earth = 1.00
Earth Similarity (ESI)
0.063
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.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Orbital-brightness modulation
Host star brightness varies with the planet's orbit.
Discovery Paper
Primary reference
Deleuil et al. 2014Instrument
Kepler CCD Array
Publication
2014-04
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-412
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,750 K — cooler than the Sun (5,778 K)
Estimated Age
5.37 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.287 R☉
Stellar Mass
1.167 M☉
Metallicity [Fe/H]
0.27
Extended Stellar Properties
Surface gravity (log g)
4.300 dex
Stellar density
0.973 g/cm³
Systemic radial velocity
-54.58 km/s
Rotational v·sin i
5.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.892 mas
Total Proper Motion
7.218 mas/yr
PM Right Ascension
-1.69 mas/yr
PM Declination
7.02 mas/yr
Galactic Cartesian (pc)
x = 0.201 · y = -0.695 · z = 0.691
Equatorial (J2000)
RA 286.11031° · Dec 43.68096°
Galactic ℓ, b
74.189° · 16.166°
Ecliptic λ, β
298.949° · 65.509°
HTM-20 index
43758004
Similar Worlds
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TOI-2420 b
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WASP-114 b
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TOI-5340 b
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Gas Giant · G-type yellow (Sun-like)
Radius 15.12 R⊕ · 871.5 ly