Key parameters at a glance

A radius of 1.51 Earth radii
A mass of 2.89 Earth masses
Surface gravity around 1.27 g
An orbital period of 16.224 days
Semi-major axis 0.1212 AU
Equilibrium temperature 676 K (403 °C)
Distance from Earth 2,470.25 light-years
Earth Similarity Index 0.446
Travel time at Voyager 1 speed 43,562,801 years

Kepler-1194 b Planet Profile

Physical Specs

Radius

1.51 R⊕

Radius (Jupiter)

0.135 R♃

Mass

2.89 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.61 g/cm³

Surface Gravity

1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.446

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

#730of 1176

top 62.0%

This planet

1.51R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-249 c 1.51 R⊕ Kepler-205 b 1.51 R⊕ Kepler-389 b 1.51 R⊕

Metric	Earth	Kepler-1194 b	Jupiter
Radius (R⊕)	1.00	1.51	11.21
Mass (M⊕)	1.00	2.89	317.83
Density (g/cm³)	5.51	4.61	1.33
Surface Gravity (g)	1.00	1.27	2.53
Insolation (S⊕)	1.00	49.35	0.037

Star Catalogue Identifiers

TIC

TIC 137317096

Gaia DR2

Gaia DR2 2052662422359019904

Gaia DR3

Gaia DR3 2052662422359019904

System

Kepler-1194

Percentile among Super-Earth cohort

Radius 1.510 R⊕ · percentile 37 / cohort 1176

Mass 2.890 M⊕ · percentile 34 / cohort 1176

Orbital period 16.22 d · percentile 80 / cohort 1164

Distance 757.38 pc · percentile 64 / cohort 1171

ESI 0.446 · percentile 67 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

16.224 days

Semi-major axis

0.1212 AU

Eccentricity

0.000

Inclination

89.48 °

Year Length

A year here lasts approximately 16.22 Earth days (4.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1212 AU.

Transit Fingerprint

Depth

0.026 %

Duration

2.502 h

Impact parameter b

0.058

Rp / R★

0.015100

Transit midpoint (BJD)

2,454,969.0271

Photometric dip

Transit produces a flux drop of 262 ppm lasting ≈ 2.50 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015100

Semi-major axis / stellar radius

50.200

Impact parameter (b)

0.058

Transit mid-time (BJD)

2,454,969.0271

Angular separation (arcsec)

0.16000

Eq. Temperature

676K

(403 °C)

Insolation (S⊕)

49.35

Earth = 1.00

Earth Similarity (ESI)

0.446

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-1194

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,590 K — cooler than the Sun (5,778 K)

Estimated Age

4.79 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.920 R☉

Stellar Mass

0.940 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

4.490 dex

Stellar density

6.605 g/cm³

Metallicity ratio

[Fe/H]

Distance

757.38 parsec

Light-years 2,470.25 ly

V-band magnitude

14.31 mag

Voyager-speed travel 43,562,801 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.836 mas

Total Proper Motion

14.286 mas/yr

PM Right Ascension

-10.68 mas/yr

PM Declination

-9.49 mas/yr

Galactic Cartesian (pc)

x = 0.291 · y = -0.731 · z = 0.618

Equatorial (J2000)

RA 291.69948° · Dec 38.14521°

Galactic ℓ, b

70.825° · 10.025°

Ecliptic λ, β

304.393° · 59.020°

HTM-20 index

1970357661