Key parameters at a glance
- A radius of 2.05 Earth radii
- A mass of 4.86 Earth masses
- Surface gravity around 1.16 g
- An orbital period of 11.932 days
- Semi-major axis 0.1070 AU
- Equilibrium temperature 905 K (632 °C)
- Distance from Earth 2,487.25 light-years
- Earth Similarity Index 0.300
- Travel time at Voyager 1 speed 43,862,697 years
2 siblings around Kepler-363
Kepler-363 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-363 b | Rocky Terrestrial | 1.16 | 1.65 | 3.615 | 1,347 | 2014 |
| Kepler-363 c | Super-Earth | 1.69 | 66.40 | 7.542 | 1,054 | 2014 |
| Kepler-363 d this | Sub-Neptune | 2.05 | 4.86 | 11.932 | 905 | 2014 |
Kepler-363 d Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1888of 1978
top 95.4%
This planet
2.05R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-363 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.05 | 11.21 |
| Mass (M⊕) | 1.00 | 4.86 | 317.83 |
| Density (g/cm³) | 5.51 | 3.10 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.16 | 2.53 |
| Insolation (S⊕) | 1.00 | 203.76 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 258349590
Gaia DR2
Gaia DR2 2104466153215402624
Gaia DR3
Gaia DR3 2104466153215402624
System
Kepler-363
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 11.93 Earth days (3.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1070 AU.
Transit Fingerprint
Depth
0.018 %
Duration
6.350 h
Impact parameter b
0.680
Rp / R★
0.012060
Transit midpoint (BJD)
2,454,975.1053
Photometric dip
Transit produces a flux drop of 179 ppm lasting ≈ 6.35 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012060
Semi-major axis / stellar radius
14.769
Impact parameter (b)
0.680
Transit mid-time (BJD)
2,454,975.1053
Angular separation (arcsec)
0.14000
Eq. Temperature
905K
(632 °C)
Insolation (S⊕)
203.76
Earth = 1.00
Earth Similarity (ESI)
0.300
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
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-363
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,593 K — cooler than the Sun (5,778 K)
Estimated Age
5.50 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.485 R☉
Stellar Mass
1.226 M☉
Metallicity [Fe/H]
0.40
Extended Stellar Properties
Surface gravity (log g)
4.152 dex
Stellar density
0.310 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
1.282 mas
Total Proper Motion
12.967 mas/yr
PM Right Ascension
-4.94 mas/yr
PM Declination
11.99 mas/yr
Galactic Cartesian (pc)
x = 0.171 · y = -0.731 · z = 0.660
Equatorial (J2000)
RA 283.19208° · Dec 41.30542°
Galactic ℓ, b
71.053° · 17.284°
Ecliptic λ, β
292.764° · 63.706°
HTM-20 index
-840326670
Similar Worlds
Kepler-337 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.05 R⊕ · 2,211.3 ly
Kepler-244 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.05 R⊕ · 3,380.6 ly
HD 110113 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.05 R⊕ · 346.7 ly
Kepler-868 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.05 R⊕ · 5,196.1 ly
Kepler-311 d
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.05 R⊕ · 2,539.6 ly
Kepler-1958 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.05 R⊕ · 4,306.5 ly