Confirmed Exoplanet Discovered 2016

Kepler-1214 b

A sub-neptune orbiting the k-type orange Kepler-1214, located approximately 2,378.4 light-years from Earth.

Key parameters at a glance

  • A radius of 2.36 Earth radii
  • A mass of 6.17 Earth masses
  • Surface gravity around 1.11 g
  • An orbital period of 18.826 days
  • Semi-major axis 0.1280 AU
  • Equilibrium temperature 591 K (318 °C)
  • Distance from Earth 2,378.42 light-years
  • Earth Similarity Index 0.436
  • Travel time at Voyager 1 speed 41,943,392 years
  • Almost certainly tidally locked to its host star given the close orbit

Kepler-1214 b Planet Profile

Physical Specs

Radius
2.36 R⊕
Radius (Jupiter)
0.211 R♃
Mass
6.17 M⊕
Mass (Jupiter)
0.019 M♃
Density
2.58 g/cm³
Surface Gravity
1.11 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.436
HZ Position Inner
Controversial No

Discovery

Year 2016
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1395of 1978

top 70.5%

This planet

2.36R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1022 b 2.36 R⊕ Kepler-482 b 2.36 R⊕ Kepler-184 b 2.36 R⊕
Metric Earth Kepler-1214 b Jupiter
Radius (R⊕)1.002.3611.21
Mass (M⊕)1.006.17317.83
Density (g/cm³)5.512.581.33
Surface Gravity (g)1.001.112.53
Insolation (S⊕)1.0023.180.037

Star Catalogue Identifiers

TIC

TIC 48528473

Gaia DR2

Gaia DR2 2132127666747169024

Gaia DR3

Gaia DR3 2132127666747169024

System

Kepler-1214

Percentile among Sub-Neptune cohort

Radius 2.360 R⊕ · percentile 29 / cohort 1978
Mass 6.170 M⊕ · percentile 28 / cohort 1978
Orbital period 18.83 d · percentile 60 / cohort 1946
Distance 729.23 pc · percentile 61 / cohort 1975
ESI 0.436 · percentile 60 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
18.826 days
Semi-major axis
0.1280 AU
Eccentricity
0.000
Inclination
89.82 °

Year Length

A year here lasts approximately 18.83 Earth days (5.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1280 AU.

Transit Fingerprint

Depth

0.080 %

Duration

2.333 h

Impact parameter b

0.198

Rp / R★

0.026959

Transit midpoint (BJD)

2,454,967.7017

Photometric dip

Transit produces a flux drop of 796 ppm lasting ≈ 2.33 h.

Extended Orbital Architecture

Planet / star radius ratio

0.026959

Semi-major axis / stellar radius

63.240

Impact parameter (b)

0.198

Transit mid-time (BJD)

2,454,967.7017

Angular separation (arcsec)

0.17600

Eq. Temperature

591K

(318 °C)

Insolation (S⊕)

23.18

Earth = 1.00

Earth Similarity (ESI)

0.436

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

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-1214

Spectral Class

K-type orange

Effective Temperature

5,130 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.800 R☉

Stellar Mass

0.850 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

4.570 dex

Stellar density

12.562 g/cm³

Metallicity ratio

[Fe/H]

Distance
729.23 parsec
Light-years 2,378.42 ly
V-band magnitude
15.46 mag
Voyager-speed travel 41,943,392 yr

Multi-band Host Photometry — 16 bands

8.916.316.27B15.46V15.22Gaia15.28Kepler14.64TESS15.97Sloan g15.19Sloan r14.98Sloan i14.80Sloan z13.83J13.38H13.35K13.20W113.24W213.09W38.91W4

Astrometric Data

Parallax

1.343 mas

Total Proper Motion

11.604 mas/yr

PM Right Ascension

11.52 mas/yr

PM Declination

1.41 mas/yr

Galactic Cartesian (pc)

x = 0.169 · y = -0.623 · z = 0.764

Equatorial (J2000)

RA 285.14271° · Dec 49.80066°

Galactic ℓ, b

79.927° · 18.990°

Ecliptic λ, β

302.190° · 71.551°

HTM-20 index

-312096588

Similar Worlds

Kepler-482 b

Sub-Neptune · K-type orange

Radius 2.36 R⊕ · 1,021.1 ly

Kepler-1022 b

Sub-Neptune · K-type orange

Radius 2.36 R⊕ · 1,370.0 ly

K2-233 d

Sub-Neptune · K-type orange

Radius 2.36 R⊕ · 220.2 ly

TOI-2443 b

Sub-Neptune · K-type orange

Radius 2.36 R⊕ · 78.0 ly

TOI-1782.01

Sub-Neptune · K-type orange

Radius 2.37 R⊕ · 310.7 ly

Kepler-1814 b

Sub-Neptune · K-type orange

Radius 2.37 R⊕ · 2,369.0 ly

Explore Related Categories

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