Key parameters at a glance

A radius of 1.02 Earth radii
A mass of 1.04 Earth masses
Surface gravity around 1.00 g
An orbital period of 2.788 days
Semi-major axis 0.0382 AU
Equilibrium temperature 1,432 K (1159 °C)
Distance from Earth 1,169.33 light-years
Earth Similarity Index 0.216
Travel time at Voyager 1 speed 20,621,098 years
Almost certainly tidally locked to its host star given the close orbit

Kepler-1150 b Planet Profile

Physical Specs

Radius

1.02 R⊕

Radius (Jupiter)

0.091 R♃

Mass

1.04 M⊕

Mass (Jupiter)

0.003 M♃

Density

5.39 g/cm³

Surface Gravity

1.00 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.216

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

#311of 570

top 54.4%

This planet

1.02R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-336 b 1.02 R⊕ Kepler-130 b 1.02 R⊕ Proxima Cen b 1.02 R⊕

Metric	Earth	Kepler-1150 b	Jupiter
Radius (R⊕)	1.00	1.02	11.21
Mass (M⊕)	1.00	1.04	317.83
Density (g/cm³)	5.51	5.39	1.33
Surface Gravity (g)	1.00	1.00	2.53
Insolation (S⊕)	1.00	153.74	0.037

Star Catalogue Identifiers

TIC

TIC 27913639

Gaia DR2

Gaia DR2 2086853351332014976

Gaia DR3

Gaia DR3 2086853351332014976

System

Kepler-1150

Percentile among Rocky Terrestrial cohort

Radius 1.020 R⊕ · percentile 44 / cohort 570

Mass 1.040 M⊕ · percentile 39 / cohort 570

Orbital period 2.79 d · percentile 32 / cohort 567

Distance 358.52 pc · percentile 48 / cohort 566

ESI 0.216 · percentile 16 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

2.788 days

Semi-major axis

0.0382 AU

Eccentricity

0.000

Inclination

89.16 °

Year Length

A year here lasts approximately 2.79 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0382 AU.

Transit Fingerprint

Depth

0.020 %

Duration

2.025 h

Impact parameter b

0.894

Rp / R★

0.012800

Transit midpoint (BJD)

2,454,966.9043

Photometric dip

Transit produces a flux drop of 201 ppm lasting ≈ 2.03 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012800

Semi-major axis / stellar radius

10.490

Impact parameter (b)

0.894

Transit mid-time (BJD)

2,454,966.9043

Angular separation (arcsec)

0.10700

Eq. Temperature

1,432K

(1159 °C)

Insolation (S⊕)

153.74

Earth = 1.00

Earth Similarity (ESI)

0.216

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. 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-1150

Spectral Class

K-type orange

Effective Temperature

4,754 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.720 R☉

Stellar Mass

0.760 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.610 dex

Stellar density

2.356 g/cm³

Metallicity ratio

[Fe/H]

Distance

358.52 parsec

Light-years 1,169.33 ly

V-band magnitude

14.75 mag

Voyager-speed travel 20,621,098 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.760 mas

Total Proper Motion

5.610 mas/yr

PM Right Ascension

-5.61 mas/yr

PM Declination

-0.07 mas/yr

Galactic Cartesian (pc)

x = 0.292 · y = -0.580 · z = 0.761

Equatorial (J2000)

RA 296.72446° · Dec 49.53268°

Galactic ℓ, b

82.822° · 12.034°

Ecliptic λ, β

321.850° · 68.215°

HTM-20 index

1748947673