Confirmed Exoplanet Discovered 2014

Kepler-341 d

A super-earth orbiting the f-type yellow-white Kepler-341, located approximately 3,415.0 light-years from Earth.

Key parameters at a glance

  • A radius of 1.85 Earth radii
  • A mass of 4.08 Earth masses
  • Surface gravity around 1.19 g
  • An orbital period of 27.666 days
  • Semi-major axis 0.1820 AU
  • Equilibrium temperature 622 K (349 °C)
  • Distance from Earth 3,414.95 light-years
  • Earth Similarity Index 0.453
  • Travel time at Voyager 1 speed 60,222,660 years

3 siblings around Kepler-341

Kepler-341 d shares its host star with 3 other confirmed planets. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-341 b Rocky Terrestrial 1.18 1.76 5.196 1,085 2014
Kepler-341 c Super-Earth 1.70 3.53 8.010 940 2014
Kepler-341 d this Super-Earth 1.85 4.08 27.666 622 2014
Kepler-341 e Super-Earth 1.99 4.62 42.473 539 2014

Kepler-341 d Planet Profile

Physical Specs

Radius
1.85 R⊕
Radius (Jupiter)
0.165 R♃
Mass
4.08 M⊕
Mass (Jupiter)
0.013 M♃
Density
3.54 g/cm³
Surface Gravity
1.19 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.453
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

#189of 1176

top 16.0%

This planet

1.85R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-341 d Jupiter
Radius (R⊕)1.001.8511.21
Mass (M⊕)1.004.08317.83
Density (g/cm³)5.513.541.33
Surface Gravity (g)1.001.192.53
Insolation (S⊕)1.0045.420.037

Star Catalogue Identifiers

TIC

TIC 159179987

Gaia DR2

Gaia DR2 2102815683186036096

Gaia DR3

Gaia DR3 2102815683186036096

System

Kepler-341

Percentile among Super-Earth cohort

Radius 1.850 R⊕ · percentile 83 / cohort 1176
Mass 4.080 M⊕ · percentile 76 / cohort 1176
Orbital period 27.67 d · percentile 91 / cohort 1164
Distance 1,047.03 pc · percentile 83 / cohort 1171
ESI 0.453 · percentile 68 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
27.666 days
Semi-major axis
0.1820 AU
Eccentricity
0.000
Inclination
88.98 °

Year Length

A year here lasts approximately 27.67 Earth days (7.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1820 AU.

Transit Fingerprint

Depth

0.032 %

Duration

6.048 h

Impact parameter b

0.270

Rp / R★

0.018670

Transit midpoint (BJD)

2,454,976.8683

Photometric dip

Transit produces a flux drop of 324 ppm lasting ≈ 6.05 h.

Extended Orbital Architecture

Planet / star radius ratio

0.018670

Semi-major axis / stellar radius

19.500

Impact parameter (b)

0.270

Transit mid-time (BJD)

2,454,976.8683

Angular separation (arcsec)

0.17400

Eq. Temperature

622K

(349 °C)

Insolation (S⊕)

45.42

Earth = 1.00

Earth Similarity (ESI)

0.453

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. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Host System: Kepler-341

Spectral Class

F-type yellow-white

Effective Temperature

6,012 K — hotter than the Sun (5,778 K)

Estimated Age

9.12 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.024 R☉

Stellar Mass

0.976 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.437 dex

Stellar density

0.600 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,047.03 parsec
Light-years 3,414.95 ly
V-band magnitude
14.74 mag
Voyager-speed travel 60,222,660 yr

Multi-band Host Photometry — 16 bands

9.315.515.49B14.74V14.57Gaia14.60Kepler14.10TESS15.07Sloan g14.55Sloan r14.40Sloan i14.33Sloan z13.42J13.11H12.99K12.98W113.09W212.21W39.28W4

Astrometric Data

Parallax

0.926 mas

Total Proper Motion

7.806 mas/yr

PM Right Ascension

-0.72 mas/yr

PM Declination

-7.77 mas/yr

Galactic Cartesian (pc)

x = 0.247 · y = -0.683 · z = 0.688

Equatorial (J2000)

RA 289.86156° · Dec 43.47274°

Galactic ℓ, b

75.112° · 13.591°

Ecliptic λ, β

304.964° · 64.520°

HTM-20 index

893962844

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