Key parameters at a glance

A radius of 2.41 Earth radii
A mass of 6.39 Earth masses
Surface gravity around 1.10 g
An orbital period of 8.969 days
Semi-major axis 0.0880 AU
Equilibrium temperature 1,024 K (751 °C)
Distance from Earth 3,024.10 light-years
Earth Similarity Index 0.247
Travel time at Voyager 1 speed 53,329,923 years

1 sibling around Kepler-343

Kepler-343 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-343 b this	Sub-Neptune	2.41	6.39	8.969	1,024	2014
Kepler-343 c	Sub-Neptune	2.02	4.74	23.222	746	2014

Kepler-343 b Planet Profile

Physical Specs

Radius

2.41 R⊕

Radius (Jupiter)

0.215 R♃

Mass

6.39 M⊕

Mass (Jupiter)

0.020 M♃

Density

2.51 g/cm³

Surface Gravity

1.10 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.247

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

#1312of 1978

top 66.3%

This planet

2.41R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

K2-8 c 2.41 R⊕ Kepler-143 b 2.41 R⊕ GJ 536 b 2.41 R⊕

Metric	Earth	Kepler-343 b	Jupiter
Radius (R⊕)	1.00	2.41	11.21
Mass (M⊕)	1.00	6.39	317.83
Density (g/cm³)	5.51	2.51	1.33
Surface Gravity (g)	1.00	1.10	2.53
Insolation (S⊕)	1.00	206.07	0.037

Star Catalogue Identifiers

TIC

TIC 63120970

Gaia DR2

Gaia DR2 2125773279815846656

Gaia DR3

Gaia DR3 2125773279815846656

System

Kepler-343

Percentile among Sub-Neptune cohort

Radius 2.410 R⊕ · percentile 33 / cohort 1978

Mass 6.390 M⊕ · percentile 31 / cohort 1978

Orbital period 8.97 d · percentile 30 / cohort 1946

Distance 927.19 pc · percentile 74 / cohort 1975

ESI 0.247 · percentile 16 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

8.969 days

Semi-major axis

0.0880 AU

Eccentricity

0.000

Inclination

87.58 °

Year Length

A year here lasts approximately 8.97 Earth days (2.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0880 AU.

Transit Fingerprint

Depth

0.023 %

Duration

4.326 h

Impact parameter b

0.730

Rp / R★

0.014260

Transit midpoint (BJD)

2,454,972.3899

Photometric dip

Transit produces a flux drop of 234 ppm lasting ≈ 4.33 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014260

Semi-major axis / stellar radius

13.190

Impact parameter (b)

0.730

Transit mid-time (BJD)

2,454,972.3899

Angular separation (arcsec)

0.09490

Eq. Temperature

1,024K

(751 °C)

Insolation (S⊕)

206.07

Earth = 1.00

Earth Similarity (ESI)

0.247

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-343

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,807 K — hotter than the Sun (5,778 K)

Estimated Age

6.46 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.433 R☉

Stellar Mass

1.055 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.184 dex

Stellar density

0.610 g/cm³

Metallicity ratio

[M/H]

Distance

927.19 parsec

Light-years 3,024.10 ly

V-band magnitude

14.06 mag

Voyager-speed travel 53,329,923 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.050 mas

Total Proper Motion

8.813 mas/yr

PM Right Ascension

-4.39 mas/yr

PM Declination

-7.64 mas/yr

Galactic Cartesian (pc)

x = 0.276 · y = -0.685 · z = 0.675

Equatorial (J2000)

RA 291.96066° · Dec 42.43296°

Galactic ℓ, b

74.825° · 11.757°

Ecliptic λ, β

307.502° · 63.041°

HTM-20 index

-361082775