Key parameters at a glance

A radius of 1.32 Earth radii
A mass of 2.30 Earth masses
Surface gravity around 1.32 g
An orbital period of 11.895 days
Semi-major axis 0.0970 AU
Equilibrium temperature 787 K (514 °C)
Distance from Earth 2,254.82 light-years
Earth Similarity Index 0.399
Travel time at Voyager 1 speed 39,763,705 years

Kepler-1156 b Planet Profile

Physical Specs

Radius

1.32 R⊕

Radius (Jupiter)

0.118 R♃

Mass

2.30 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.50 g/cm³

Surface Gravity

1.32 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.399

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

#1049of 1176

top 89.1%

This planet

1.32R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1506 b 1.32 R⊕ Kepler-383 b 1.32 R⊕ Kepler-157 b 1.32 R⊕

Metric	Earth	Kepler-1156 b	Jupiter
Radius (R⊕)	1.00	1.32	11.21
Mass (M⊕)	1.00	2.30	317.83
Density (g/cm³)	5.51	5.50	1.33
Surface Gravity (g)	1.00	1.32	2.53
Insolation (S⊕)	1.00	83.01	0.037

Star Catalogue Identifiers

TIC

TIC 158842046

Gaia DR2

Gaia DR2 2127359737653864832

Gaia DR3

Gaia DR3 2127359737653864832

System

Kepler-1156

Percentile among Super-Earth cohort

Radius 1.320 R⊕ · percentile 9 / cohort 1176

Mass 2.300 M⊕ · percentile 9 / cohort 1176

Orbital period 11.90 d · percentile 69 / cohort 1164

Distance 691.33 pc · percentile 60 / cohort 1171

ESI 0.399 · percentile 60 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

11.895 days

Semi-major axis

0.0970 AU

Eccentricity

0.000

Inclination

89.86 °

Year Length

A year here lasts approximately 11.90 Earth days (3.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0970 AU.

Transit Fingerprint

Depth

0.018 %

Duration

3.500 h

Impact parameter b

0.204

Rp / R★

0.012079

Transit midpoint (BJD)

2,454,965.8899

Photometric dip

Transit produces a flux drop of 184 ppm lasting ≈ 3.50 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012079

Semi-major axis / stellar radius

26.740

Impact parameter (b)

0.204

Transit mid-time (BJD)

2,454,965.8899

Angular separation (arcsec)

0.14000

Eq. Temperature

787K

(514 °C)

Insolation (S⊕)

83.01

Earth = 1.00

Earth Similarity (ESI)

0.399

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-1156

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

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

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.000 R☉

Stellar Mass

1.000 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.440 dex

Stellar density

1.090 g/cm³

Metallicity ratio

[Fe/H]

Distance

691.33 parsec

Light-years 2,254.82 ly

V-band magnitude

14.26 mag

Voyager-speed travel 39,763,705 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.418 mas

Total Proper Motion

10.467 mas/yr

PM Right Ascension

5.94 mas/yr

PM Declination

-8.61 mas/yr

Galactic Cartesian (pc)

x = 0.225 · y = -0.656 · z = 0.720

Equatorial (J2000)

RA 288.92409° · Dec 46.05759°

Galactic ℓ, b

77.269° · 15.253°

Ecliptic λ, β

305.468° · 67.181°

HTM-20 index

1981379977