Key parameters at a glance

A radius of 1.03 Earth radii
A mass of 1.08 Earth masses
Surface gravity around 1.02 g
An orbital period of 14.009 days
Semi-major axis 0.1040 AU
Equilibrium temperature 617 K (344 °C)
Distance from Earth 1,046.96 light-years
Earth Similarity Index 0.529
Travel time at Voyager 1 speed 18,463,152 years
Almost certainly tidally locked to its host star given the close orbit

Kepler-1347 b Planet Profile

Physical Specs

Radius

1.03 R⊕

Radius (Jupiter)

0.092 R♃

Mass

1.08 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.43 g/cm³

Surface Gravity

1.02 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.529

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

#297of 570

top 51.9%

This planet

1.03R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-395 b 1.03 R⊕ Kepler-387 b 1.03 R⊕ Kepler-1398 c 1.03 R⊕

Metric	Earth	Kepler-1347 b	Jupiter
Radius (R⊕)	1.00	1.03	11.21
Mass (M⊕)	1.00	1.08	317.83
Density (g/cm³)	5.51	5.43	1.33
Surface Gravity (g)	1.00	1.02	2.53
Insolation (S⊕)	1.00	34.32	0.037

Star Catalogue Identifiers

TIC

TIC 172422725

Gaia DR2

Gaia DR2 2075063150722101376

Gaia DR3

Gaia DR3 2075063150726110208

System

Kepler-1347

Percentile among Rocky Terrestrial cohort

Radius 1.030 R⊕ · percentile 46 / cohort 570

Mass 1.080 M⊕ · percentile 41 / cohort 570

Orbital period 14.01 d · percentile 86 / cohort 567

Distance 321.00 pc · percentile 43 / cohort 566

ESI 0.529 · percentile 72 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

14.009 days

Semi-major axis

0.1040 AU

Eccentricity

0.000

Inclination

89.50 °

Year Length

A year here lasts approximately 14.01 Earth days (3.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1040 AU.

Transit Fingerprint

Depth

0.017 %

Duration

3.405 h

Impact parameter b

0.268

Rp / R★

0.011842

Transit midpoint (BJD)

2,454,965.9721

Photometric dip

Transit produces a flux drop of 170 ppm lasting ≈ 3.41 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011842

Semi-major axis / stellar radius

31.740

Impact parameter (b)

0.268

Transit mid-time (BJD)

2,454,965.9721

Angular separation (arcsec)

0.32400

Eq. Temperature

617K

(344 °C)

Insolation (S⊕)

34.32

Earth = 1.00

Earth Similarity (ESI)

0.529

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-1347

Spectral Class

K-type orange

Effective Temperature

5,193 K — cooler than the Sun (5,778 K)

Estimated Age

5.62 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.790 R☉

Stellar Mass

0.820 M☉

Metallicity [Fe/H]

-0.11

Extended Stellar Properties

Surface gravity (log g)

4.570 dex

Stellar density

3.081 g/cm³

Metallicity ratio

[Fe/H]

Distance

321.00 parsec

Light-years 1,046.96 ly

V-band magnitude

13.56 mag

Voyager-speed travel 18,463,152 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Total Proper Motion

5.428 mas/yr

PM Right Ascension

1.96 mas/yr

PM Declination

-5.06 mas/yr

Galactic Cartesian (pc)

x = 0.374 · y = -0.657 · z = 0.654

Equatorial (J2000)

RA 299.65959° · Dec 40.84385°

Galactic ℓ, b

76.202° · 5.947°

Ecliptic λ, β

317.499° · 59.488°

HTM-20 index

-734048967