Key parameters at a glance
- A radius of 2.27 Earth radii
- A mass of 5.77 Earth masses
- Surface gravity around 1.12 g
- An orbital period of 28.465 days
- Semi-major axis 0.1540 AU
- Equilibrium temperature 301 K (28 °C)
- Distance from Earth 864.29 light-years
- Earth Similarity Index 0.772
- Travel time at Voyager 1 speed 15,241,763 years
- Almost certainly tidally locked to its host star given the close orbit
2 siblings around Kepler-267
Kepler-267 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-267 b | Super-Earth | 1.98 | 37.90 | 3.354 | 615 | 2014 |
| Kepler-267 c | Sub-Neptune | 2.13 | 5.18 | 6.877 | 484 | 2014 |
| Kepler-267 d this | Sub-Neptune | 2.27 | 5.77 | 28.465 | 301 | 2014 |
Kepler-267 d Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1554of 1978
top 78.5%
This planet
2.27R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-267 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.27 | 11.21 |
| Mass (M⊕) | 1.00 | 5.77 | 317.83 |
| Density (g/cm³) | 5.51 | 2.71 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.12 | 2.53 |
| Insolation (S⊕) | 1.00 | 2.65 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 269357457
Gaia DR2
Gaia DR2 2085626983551485440
Gaia DR3
Gaia DR3 2085626983551485440
System
Kepler-267
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 28.46 Earth days (7.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1540 AU.
Transit Fingerprint
Depth
0.163 %
Duration
2.742 h
Impact parameter b
0.480
Rp / R★
0.037174
Transit midpoint (BJD)
2,454,991.0404
Photometric dip
Transit produces a flux drop of 1,630 ppm lasting ≈ 2.74 h.
Extended Orbital Architecture
Planet / star radius ratio
0.037174
Semi-major axis / stellar radius
84.560
Impact parameter (b)
0.480
Transit mid-time (BJD)
2,454,991.0404
Angular separation (arcsec)
0.58100
Eq. Temperature
301K
(28 °C)
Insolation (S⊕)
2.65
Earth = 1.00
Earth Similarity (ESI)
0.772
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure. Close-orbiting tidally-locked around a cool host.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
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-267
Spectral Class
M-type red dwarf
Effective Temperature
4,258 K — cooler than the Sun (5,778 K)
Estimated Age
3.06 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.555 R☉
Stellar Mass
0.542 M☉
Metallicity [Fe/H]
-0.18
Extended Stellar Properties
Surface gravity (log g)
4.729 dex
Stellar density
4.693 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.745 mas
Total Proper Motion
37.232 mas/yr
PM Right Ascension
28.59 mas/yr
PM Declination
23.86 mas/yr
Galactic Cartesian (pc)
x = 0.338 · y = -0.590 · z = 0.733
Equatorial (J2000)
RA 299.83057° · Dec 47.15757°
Galactic ℓ, b
81.738° · 9.073°
Ecliptic λ, β
323.577° · 65.144°
HTM-20 index
988276124
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