Key parameters at a glance
- A radius of 1.25 Earth radii
- A mass of 2.10 Earth masses
- Surface gravity around 1.34 g
- An orbital period of 7.031 days
- Semi-major axis 0.0760 AU
- Equilibrium temperature 1,194 K (921 °C)
- Distance from Earth 2,740.59 light-years
- Earth Similarity Index 0.254
- Travel time at Voyager 1 speed 48,330,262 years
2 siblings around Kepler-403
Kepler-403 b 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 this | Super-Earth | 1.25 | 2.10 | 7.031 | 1,194 | 2014 |
| Kepler-403 d | 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 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#1161of 1176
top 98.6%
This planet
1.25R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-403 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.25 | 11.21 |
| Mass (M⊕) | 1.00 | 2.10 | 317.83 |
| Density (g/cm³) | 5.51 | 5.91 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.34 | 2.53 |
| Insolation (S⊕) | 1.00 | 689.46 | 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 7.03 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0760 AU.
Transit Fingerprint
Depth
0.009 %
Duration
5.848 h
Impact parameter b
0.110
Rp / R★
0.008449
Transit midpoint (BJD)
2,454,967.4516
Photometric dip
Transit produces a flux drop of 85 ppm lasting ≈ 5.85 h.
Extended Orbital Architecture
Planet / star radius ratio
0.008449
Semi-major axis / stellar radius
9.165
Impact parameter (b)
0.110
Transit mid-time (BJD)
2,454,967.4516
Angular separation (arcsec)
0.09040
Eq. Temperature
1,194K
(921 °C)
Insolation (S⊕)
689.46
Earth = 1.00
Earth Similarity (ESI)
0.254
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-403
Spectral Class
F-type yellow-white
Effective Temperature
6,090 K — hotter than the Sun (5,778 K)
Estimated Age
3.09 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.329 R☉
Stellar Mass
1.299 M☉
Metallicity [Fe/H]
0.08
Extended Stellar Properties
Surface gravity (log g)
4.266 dex
Stellar density
0.220 g/cm³
Systemic radial velocity
-31.09 km/s
Metallicity ratio
[M/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
Kepler-826 b
Super-Earth · F-type yellow-white
Radius 1.25 R⊕ · 2,542.7 ly
Kepler-1618 b
Super-Earth · F-type yellow-white
Radius 1.26 R⊕ · 4,009.3 ly
EPIC 212587672 b
Super-Earth · F-type yellow-white
Radius 1.26 R⊕ · 1,043.9 ly
Kepler-380 c
Super-Earth · F-type yellow-white
Radius 1.27 R⊕ · 2,654.0 ly
Kepler-1591 b
Super-Earth · F-type yellow-white
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Kepler-1370 c
Super-Earth · F-type yellow-white
Radius 1.27 R⊕ · 3,274.9 ly