Key parameters at a glance
- A radius of 1.42 Earth radii
- A mass of 2.60 Earth masses
- Surface gravity around 1.29 g
- An orbital period of 13.612 days
- Semi-major axis 0.1218 AU
- Equilibrium temperature 958 K (685 °C)
- Distance from Earth 2,740.59 light-years
- Earth Similarity Index 0.318
- Travel time at Voyager 1 speed 48,330,262 years
2 siblings around Kepler-403
Kepler-403 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-403 b | Super-Earth | 1.25 | 2.10 | 7.031 | 1,194 | 2014 |
| Kepler-403 d this | Super-Earth | 1.42 | 2.60 | 13.612 | 958 | 2016 |
| Kepler-403 c | Super-Earth | 1.75 | 3.71 | 54.281 | 604 | 2014 |
Kepler-403 d Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#884of 1176
top 75.1%
This planet
1.42R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-403 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.42 | 11.21 |
| Mass (M⊕) | 1.00 | 2.60 | 317.83 |
| Density (g/cm³) | 5.51 | 4.99 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.29 | 2.53 |
| Insolation (S⊕) | 1.00 | 285.30 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 159174926
Gaia DR2
Gaia DR2 2127815657021840128
Gaia DR3
Gaia DR3 2127815657021840128
System
Kepler-403
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 13.61 Earth days (3.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1218 AU.
Transit Fingerprint
Depth
0.010 %
Duration
7.508 h
Impact parameter b
0.112
Rp / R★
0.008956
Transit midpoint (BJD)
2,454,977.1721
Photometric dip
Transit produces a flux drop of 96 ppm lasting ≈ 7.51 h.
Extended Orbital Architecture
Planet / star radius ratio
0.008956
Semi-major axis / stellar radius
13.956
Impact parameter (b)
0.112
Transit mid-time (BJD)
2,454,977.1721
Angular separation (arcsec)
0.14500
Eq. Temperature
958K
(685 °C)
Insolation (S⊕)
285.30
Earth = 1.00
Earth Similarity (ESI)
0.318
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Discovery Paper
Primary reference
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-403
Spectral Class
F-type yellow-white
Effective Temperature
6,209 K — hotter than the Sun (5,778 K)
Estimated Age
3.09 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.450 R☉
Stellar Mass
1.250 M☉
Metallicity [Fe/H]
0.16
Extended Stellar Properties
Surface gravity (log g)
4.210 dex
Stellar density
0.220 g/cm³
Systemic radial velocity
-31.09 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.162 mas
Total Proper Motion
13.807 mas/yr
PM Right Ascension
-5.91 mas/yr
PM Declination
-12.48 mas/yr
Galactic Cartesian (pc)
x = 0.233 · y = -0.644 · z = 0.728
Equatorial (J2000)
RA 289.92143° · Dec 46.74453°
Galactic ℓ, b
78.206° · 14.899°
Ecliptic λ, β
307.762° · 67.589°
HTM-20 index
1804254281
Similar Worlds
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Super-Earth · F-type yellow-white
Radius 1.42 R⊕ · 990.6 ly
Kepler-1274 b
Super-Earth · F-type yellow-white
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Kepler-128 b
Super-Earth · F-type yellow-white
Radius 1.42 R⊕ · 1,292.8 ly
Kepler-1921 c
Super-Earth · F-type yellow-white
Radius 1.41 R⊕ · 3,030.0 ly
Kepler-1383 b
Super-Earth · F-type yellow-white
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Kepler-187 b
Super-Earth · F-type yellow-white
Radius 1.41 R⊕ · 3,728.0 ly