Key parameters at a glance

A radius of 1.14 Earth radii
A mass of 1.55 Earth masses
Surface gravity around 1.19 g
An orbital period of 18.137 days
Semi-major axis 0.1132 AU
Equilibrium temperature 433 K (160 °C)
Distance from Earth 1,207.79 light-years
Earth Similarity Index 0.710
Travel time at Voyager 1 speed 21,299,460 years
Almost certainly tidally locked to its host star given the close orbit

Kepler-1456 b Planet Profile

Physical Specs

Radius

1.14 R⊕

Radius (Jupiter)

0.102 R♃

Mass

1.55 M⊕

Mass (Jupiter)

0.005 M♃

Density

5.75 g/cm³

Surface Gravity

1.19 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.710

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

#169of 570

top 29.5%

This planet

1.14R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-320 b 1.14 R⊕ Kepler-303 c 1.14 R⊕ Kepler-324 b 1.14 R⊕

Metric	Earth	Kepler-1456 b	Jupiter
Radius (R⊕)	1.00	1.14	11.21
Mass (M⊕)	1.00	1.55	317.83
Density (g/cm³)	5.51	5.75	1.33
Surface Gravity (g)	1.00	1.19	2.53
Insolation (S⊕)	1.00	8.23	0.037

Star Catalogue Identifiers

TIC

TIC 158385035

Gaia DR2

Gaia DR2 2106018801073572224

Gaia DR3

Gaia DR3 2106018801073572224

System

Kepler-1456

Percentile among Rocky Terrestrial cohort

Radius 1.140 R⊕ · percentile 69 / cohort 570

Mass 1.550 M⊕ · percentile 63 / cohort 570

Orbital period 18.14 d · percentile 91 / cohort 567

Distance 370.31 pc · percentile 49 / cohort 566

ESI 0.710 · percentile 83 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

18.137 days

Semi-major axis

0.1132 AU

Eccentricity

0.000

Inclination

86.12 °

Year Length

A year here lasts approximately 18.14 Earth days (5.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1132 AU.

Transit Fingerprint

Depth

0.038 %

Duration

3.550 h

Impact parameter b

0.239

Rp / R★

0.017374

Transit midpoint (BJD)

2,454,969.8080

Photometric dip

Transit produces a flux drop of 383 ppm lasting ≈ 3.55 h.

Extended Orbital Architecture

Planet / star radius ratio

0.017374

Semi-major axis / stellar radius

13.970

Impact parameter (b)

0.239

Transit mid-time (BJD)

2,454,969.8080

Angular separation (arcsec)

0.30600

Eq. Temperature

433K

(160 °C)

Insolation (S⊕)

8.23

Earth = 1.00

Earth Similarity (ESI)

0.710

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-1456

Spectral Class

K-type orange

Effective Temperature

4,231 K — cooler than the Sun (5,778 K)

Estimated Age

3.72 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.620 R☉

Stellar Mass

0.640 M☉

Metallicity [Fe/H]

-0.09

Extended Stellar Properties

Surface gravity (log g)

4.670 dex

Stellar density

3.309 g/cm³

Metallicity ratio

[Fe/H]

Distance

370.31 parsec

Light-years 1,207.79 ly

V-band magnitude

15.78 mag

Voyager-speed travel 21,299,460 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.672 mas

Total Proper Motion

6.676 mas/yr

PM Right Ascension

0.36 mas/yr

PM Declination

6.67 mas/yr

Galactic Cartesian (pc)

x = 0.210 · y = -0.690 · z = 0.692

Equatorial (J2000)

RA 286.94534° · Dec 43.82280°

Galactic ℓ, b

74.566° · 15.663°

Ecliptic λ, β

300.441° · 65.481°

HTM-20 index

14835315