Confirmed Exoplanet Discovered 2014

Kepler-267 b

A super-earth orbiting the m-type red dwarf Kepler-267, located approximately 864.3 light-years from Earth.

Key parameters at a glance

  • A radius of 1.98 Earth radii
  • A mass of 37.90 Earth masses
  • Surface gravity around 9.67 g
  • An orbital period of 3.354 days
  • Semi-major axis 0.0370 AU
  • Equilibrium temperature 615 K (342 °C)
  • Distance from Earth 864.29 light-years
  • Earth Similarity Index 0.318
  • 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 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-267 b this 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 Sub-Neptune 2.27 5.77 28.465 301 2014

Kepler-267 b Planet Profile

Physical Specs

Radius
1.98 R⊕
Radius (Jupiter)
0.177 R♃
Mass
37.90 M⊕
Mass (Jupiter)
0.119 M♃
Density
26.80 g/cm³
Surface Gravity
9.67 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.318
HZ Position Inner
Controversial No

Discovery

Year 2014
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#25of 1176

top 2.0%

This planet

1.98R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-267 b Jupiter
Radius (R⊕)1.001.9811.21
Mass (M⊕)1.0037.90317.83
Density (g/cm³)5.5126.801.33
Surface Gravity (g)1.009.672.53
Insolation (S⊕)1.0045.840.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 37.900 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 269357457

Gaia DR2

Gaia DR2 2085626983551485440

Gaia DR3

Gaia DR3 2085626983551485440

System

Kepler-267

Percentile among Super-Earth cohort

Radius 1.980 R⊕ · percentile 97 / cohort 1176
Mass 37.900 M⊕ · percentile 99 / cohort 1176
Orbital period 3.35 d · percentile 25 / cohort 1164
Distance 264.99 pc · percentile 29 / cohort 1171
ESI 0.318 · percentile 41 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
3.354 days
Semi-major axis
0.0370 AU
Eccentricity
0.000
Inclination
89.84 °

Year Length

A year here lasts approximately 3.35 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0370 AU.

Transit Fingerprint

Depth

0.126 %

Duration

1.494 h

Impact parameter b

0.220

Rp / R★

0.032813

Transit midpoint (BJD)

2,454,967.8689

Photometric dip

Transit produces a flux drop of 1,265 ppm lasting ≈ 1.49 h.

Extended Orbital Architecture

Planet / star radius ratio

0.032813

Semi-major axis / stellar radius

18.114

Impact parameter (b)

0.220

Transit mid-time (BJD)

2,454,967.8689

Angular separation (arcsec)

0.14000

Eq. Temperature

615K

(342 °C)

Insolation (S⊕)

45.84

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. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

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]

Distance
264.99 parsec
Light-years 864.29 ly
V-band magnitude
16.69 mag
Voyager-speed travel 15,241,763 yr

Multi-band Host Photometry — 16 bands

9.417.617.56B16.69V15.47Gaia15.44Kepler14.51TESS16.82Sloan g15.49Sloan r14.85Sloan i14.49Sloan z13.33J12.68H12.49K12.35W112.37W212.09W39.38W4

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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