Key parameters at a glance

A radius of 1.15 Earth radii
A mass of 1.60 Earth masses
Surface gravity around 1.21 g
An orbital period of 15.045 days
Semi-major axis 0.1131 AU
Equilibrium temperature 931 K (658 °C)
Distance from Earth 1,837.87 light-years
Earth Similarity Index 0.340
Travel time at Voyager 1 speed 32,410,769 years

Kepler-1199 b Planet Profile

Physical Specs

Radius

1.15 R⊕

Radius (Jupiter)

0.103 R♃

Mass

1.60 M⊕

Mass (Jupiter)

0.005 M♃

Density

5.78 g/cm³

Surface Gravity

1.21 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.340

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

#160of 570

top 27.9%

This planet

1.15R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-339 c 1.15 R⊕ Kepler-1240 b 1.15 R⊕ Kepler-1468 c 1.15 R⊕

Metric	Earth	Kepler-1199 b	Jupiter
Radius (R⊕)	1.00	1.15	11.21
Mass (M⊕)	1.00	1.60	317.83
Density (g/cm³)	5.51	5.78	1.33
Surface Gravity (g)	1.00	1.21	2.53
Insolation (S⊕)	1.00	131.70	0.037

Star Catalogue Identifiers

TIC

TIC 270696519

Gaia DR2

Gaia DR2 2128230615282091904

Gaia DR3

Gaia DR3 2128230615282091904

System

Kepler-1199

Percentile among Rocky Terrestrial cohort

Radius 1.150 R⊕ · percentile 71 / cohort 570

Mass 1.600 M⊕ · percentile 65 / cohort 570

Orbital period 15.04 d · percentile 88 / cohort 567

Distance 563.49 pc · percentile 70 / cohort 566

ESI 0.340 · percentile 49 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

15.045 days

Semi-major axis

0.1131 AU

Eccentricity

0.000

Inclination

89.94 °

Year Length

A year here lasts approximately 15.04 Earth days (4.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1131 AU.

Transit Fingerprint

Depth

0.010 %

Duration

5.819 h

Impact parameter b

0.880

Rp / R★

0.009366

Transit midpoint (BJD)

2,454,966.2073

Photometric dip

Transit produces a flux drop of 98 ppm lasting ≈ 5.82 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009366

Semi-major axis / stellar radius

19.920

Impact parameter (b)

0.880

Transit mid-time (BJD)

2,454,966.2073

Angular separation (arcsec)

0.20100

Eq. Temperature

931K

(658 °C)

Insolation (S⊕)

131.70

Earth = 1.00

Earth Similarity (ESI)

0.340

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-1199

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,889 K — hotter than the Sun (5,778 K)

Estimated Age

7.76 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.170 R☉

Stellar Mass

0.940 M☉

Metallicity [Fe/H]

-0.27

Extended Stellar Properties

Surface gravity (log g)

4.270 dex

Stellar density

0.440 g/cm³

Systemic radial velocity

-39.43 km/s

Metallicity ratio

[Fe/H]

Distance

563.49 parsec

Light-years 1,837.87 ly

V-band magnitude

13.17 mag

Voyager-speed travel 32,410,769 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.720 mas

Total Proper Motion

13.563 mas/yr

PM Right Ascension

-4.87 mas/yr

PM Declination

-12.66 mas/yr

Galactic Cartesian (pc)

x = 0.273 · y = -0.621 · z = 0.734

Equatorial (J2000)

RA 293.72581° · Dec 47.24692°

Galactic ℓ, b

79.810° · 12.764°

Ecliptic λ, β

314.480° · 67.058°

HTM-20 index

-1807032737