Key parameters at a glance

A radius of 1.10 Earth radii
A mass of 1.37 Earth masses
Surface gravity around 1.13 g
An orbital period of 11.629 days
Semi-major axis 0.0987 AU
Equilibrium temperature 854 K (581 °C)
Distance from Earth 1,866.93 light-years
Earth Similarity Index 0.377
Travel time at Voyager 1 speed 32,923,251 years

Kepler-1406 b Planet Profile

Physical Specs

Radius

1.10 R⊕

Radius (Jupiter)

0.098 R♃

Mass

1.37 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.66 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.377

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

#224of 570

top 39.1%

This planet

1.10R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-392 c 1.10 R⊕ Kepler-59 b 1.10 R⊕ K2-239 d 1.10 R⊕

Metric	Earth	Kepler-1406 b	Jupiter
Radius (R⊕)	1.00	1.10	11.21
Mass (M⊕)	1.00	1.37	317.83
Density (g/cm³)	5.51	5.66	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	125.89	0.037

Star Catalogue Identifiers

TIC

TIC 137483383

Gaia DR2

Gaia DR2 2052724029370990208

Gaia DR3

Gaia DR3 2052724029370990208

System

Kepler-1406

Percentile among Rocky Terrestrial cohort

Radius 1.100 R⊕ · percentile 59 / cohort 570

Mass 1.370 M⊕ · percentile 54 / cohort 570

Orbital period 11.63 d · percentile 82 / cohort 567

Distance 572.40 pc · percentile 71 / cohort 566

ESI 0.377 · percentile 55 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

11.629 days

Semi-major axis

0.0987 AU

Eccentricity

0.000

Inclination

85.67 °

Year Length

A year here lasts approximately 11.63 Earth days (3.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0987 AU.

Transit Fingerprint

Depth

0.009 %

Duration

2.846 h

Impact parameter b

0.370

Rp / R★

0.008881

Transit midpoint (BJD)

2,454,965.8204

Photometric dip

Transit produces a flux drop of 88 ppm lasting ≈ 2.85 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008881

Semi-major axis / stellar radius

12.240

Impact parameter (b)

0.370

Transit mid-time (BJD)

2,454,965.8204

Angular separation (arcsec)

0.17200

Eq. Temperature

854K

(581 °C)

Insolation (S⊕)

125.89

Earth = 1.00

Earth Similarity (ESI)

0.377

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

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-1406

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,892 K — hotter than the Sun (5,778 K)

Estimated Age

5.01 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.120 R☉

Stellar Mass

1.050 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.360 dex

Stellar density

3.524 g/cm³

Metallicity ratio

[Fe/H]

Distance

572.40 parsec

Light-years 1,866.93 ly

V-band magnitude

13.39 mag

Voyager-speed travel 32,923,251 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.804 mas

Total Proper Motion

11.845 mas/yr

PM Right Ascension

-0.83 mas/yr

PM Declination

-11.82 mas/yr

Galactic Cartesian (pc)

x = 0.293 · y = -0.721 · z = 0.628

Equatorial (J2000)

RA 292.08188° · Dec 38.91495°

Galactic ℓ, b

71.660° · 10.105°

Ecliptic λ, β

305.393° · 59.670°

HTM-20 index

2071130365