Key parameters at a glance
- A radius of 2.79 Earth radii
- A mass of 8.20 Earth masses
- Surface gravity around 1.05 g
- An orbital period of 12.561 days
- Semi-major axis 0.1040 AU
- Equilibrium temperature 734 K (461 °C)
- Distance from Earth 2,906.35 light-years
- Earth Similarity Index 0.331
- Travel time at Voyager 1 speed 51,253,480 years
4 siblings around Kepler-150
Kepler-150 d shares its host star with 4 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-150 b | Super-Earth | 1.25 | 2.10 | 3.428 | 1,131 | 2014 |
| Kepler-150 c | Sub-Neptune | 3.69 | 13.20 | 7.382 | 876 | 2014 |
| Kepler-150 d this | Sub-Neptune | 2.79 | 8.20 | 12.561 | 734 | 2014 |
| Kepler-150 e | Sub-Neptune | 3.12 | 9.91 | 30.827 | 544 | 2014 |
| Kepler-150 f | Sub-Neptune | 3.64 | 12.90 | 637.209 | — | 2017 |
Kepler-150 d Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#754of 1978
top 38.1%
This planet
2.79R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-150 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.79 | 11.21 |
| Mass (M⊕) | 1.00 | 8.20 | 317.83 |
| Density (g/cm³) | 5.51 | 2.07 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.05 | 2.53 |
| Insolation (S⊕) | 1.00 | 65.14 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 121598758
Gaia DR2
Gaia DR2 2102063136195478656
Gaia DR3
Gaia DR3 2102063136195478656
System
Kepler-150
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 12.56 Earth days (3.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1040 AU.
Transit Fingerprint
Depth
0.097 %
Duration
3.764 h
Impact parameter b
0.120
Rp / R★
0.028343
Transit midpoint (BJD)
2,454,999.7959
Photometric dip
Transit produces a flux drop of 967 ppm lasting ≈ 3.76 h.
Extended Orbital Architecture
Planet / star radius ratio
0.028343
Semi-major axis / stellar radius
26.188
Impact parameter (b)
0.120
Transit mid-time (BJD)
2,454,999.7959
Angular separation (arcsec)
0.11700
Eq. Temperature
734K
(461 °C)
Insolation (S⊕)
65.14
Earth = 1.00
Earth Similarity (ESI)
0.331
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-150
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,560 K — cooler than the Sun (5,778 K)
Estimated Age
1.74 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.939 R☉
Stellar Mass
0.956 M☉
Metallicity [Fe/H]
0.12
Extended Stellar Properties
Surface gravity (log g)
4.466 dex
Stellar density
1.390 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.094 mas
Total Proper Motion
1.466 mas/yr
PM Right Ascension
0.66 mas/yr
PM Declination
1.31 mas/yr
Galactic Cartesian (pc)
x = 0.238 · y = -0.722 · z = 0.650
Equatorial (J2000)
RA 288.23410° · Dec 40.52090°
Galactic ℓ, b
71.833° · 13.468°
Ecliptic λ, β
300.485° · 62.044°
HTM-20 index
-1329079056
Similar Worlds
Kepler-835 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.79 R⊕ · 7,848.4 ly
K2-319 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.79 R⊕ · 681.9 ly
Kepler-325 d
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.79 R⊕ · 2,685.1 ly
Kepler-573 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.79 R⊕ · 2,516.2 ly
Kepler-586 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.79 R⊕ · 2,262.8 ly
Kepler-192 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.79 R⊕ · 2,125.5 ly