Confirmed Exoplanet Discovered 2014

Kepler-414 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-414, located approximately 1,348.5 light-years from Earth.

Key parameters at a glance

  • A radius of 1.71 Earth radii
  • A mass of 3.50 Earth masses
  • Surface gravity around 1.20 g
  • An orbital period of 4.700 days
  • Semi-major axis 0.0543 AU
  • Equilibrium temperature 1,024 K (751 °C)
  • Distance from Earth 1,348.52 light-years
  • Earth Similarity Index 0.279
  • Travel time at Voyager 1 speed 23,781,230 years

1 sibling around Kepler-414

Kepler-414 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-414 b this Super-Earth 1.71 3.50 4.700 1,024 2014
Kepler-414 c Sub-Neptune 3.01 29.90 7.171 890 2014

Kepler-414 b Planet Profile

Physical Specs

Radius
1.71 R⊕
Radius (Jupiter)
0.153 R♃
Mass
3.50 M⊕
Mass (Jupiter)
0.011 M♃
Density
3.85 g/cm³
Surface Gravity
1.20 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.279
HZ Position Inner
Controversial No

Discovery

Year 2014
Method Transit Timing Variations
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#385of 1176

top 32.7%

This planet

1.71R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-414 b Jupiter
Radius (R⊕)1.001.7111.21
Mass (M⊕)1.003.50317.83
Density (g/cm³)5.513.851.33
Surface Gravity (g)1.001.202.53
Insolation (S⊕)1.00241.170.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 3.500 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 28357724

Gaia DR2

Gaia DR2 2086519821353411456

Gaia DR3

Gaia DR3 2086519821353411456

System

Kepler-414

Percentile among Super-Earth cohort

Radius 1.710 R⊕ · percentile 66 / cohort 1176
Mass 3.500 M⊕ · percentile 58 / cohort 1176
Orbital period 4.70 d · percentile 38 / cohort 1164
Distance 413.46 pc · percentile 41 / cohort 1171
ESI 0.279 · percentile 31 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
4.700 days
Semi-major axis
0.0543 AU
Eccentricity
0.000
Inclination
89.45 °

Year Length

A year here lasts approximately 4.70 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0543 AU.

Transit Fingerprint

Depth

0.035 %

Duration

2.553 h

Impact parameter b

0.730

Rp / R★

0.016925

Transit midpoint (BJD)

2,455,010.6152

Photometric dip

Transit produces a flux drop of 351 ppm lasting ≈ 2.55 h.

Extended Orbital Architecture

Planet / star radius ratio

0.016925

Semi-major axis / stellar radius

14.190

Impact parameter (b)

0.730

Transit mid-time (BJD)

2,455,010.6152

Angular separation (arcsec)

0.13100

Eq. Temperature

1,024K

(751 °C)

Insolation (S⊕)

241.17

Earth = 1.00

Earth Similarity (ESI)

0.279

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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

Hadden et al. 2014

Instrument

Kepler CCD Array

Publication

2014-05

Observation locale

Space

Host System: Kepler-414

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,536 K — cooler than the Sun (5,778 K)

Estimated Age

1.55 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.946 R☉

Stellar Mass

0.890 M☉

Metallicity [Fe/H]

0.18

Extended Stellar Properties

Surface gravity (log g)

4.470 dex

Stellar density

1.410 g/cm³

Systemic radial velocity

-28.20 km/s

Rotational v·sin i

6.10 km/s

Metallicity ratio

[Fe/H]

Distance
413.46 parsec
Light-years 1,348.52 ly
V-band magnitude
13.38 mag
Voyager-speed travel 23,781,230 yr

Multi-band Host Photometry — 16 bands

9.514.414.36B13.38V13.32Gaia13.34Kepler12.81TESS13.88Sloan g13.28Sloan r13.11Sloan i13.03Sloan z12.09J11.75H11.70K11.63W111.67W211.43W39.49W4

Astrometric Data

Parallax

2.390 mas

Total Proper Motion

8.781 mas/yr

PM Right Ascension

2.81 mas/yr

PM Declination

-8.32 mas/yr

Galactic Cartesian (pc)

x = 0.312 · y = -0.588 · z = 0.746

Equatorial (J2000)

RA 297.96156° · Dec 48.24434°

Galactic ℓ, b

82.062° · 10.704°

Ecliptic λ, β

322.113° · 66.695°

HTM-20 index

2076957661

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