Key parameters at a glance

A radius of 1.13 Earth radii
A mass of 1.51 Earth masses
Surface gravity around 1.18 g
An orbital period of 2.733 days
Semi-major axis 0.0300 AU
Equilibrium temperature 687 K (414 °C)
Distance from Earth 697.97 light-years
Earth Similarity Index 0.467
Travel time at Voyager 1 speed 12,308,768 years
Almost certainly tidally locked to its host star given the close orbit

1 sibling around Kepler-369

Kepler-369 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-369 b this	Rocky Terrestrial	1.13	1.51	2.733	687	2014
Kepler-369 c	Super-Earth	1.41	2.57	14.872	391	2014

Kepler-369 b Planet Profile

Physical Specs

Radius

1.13 R⊕

Radius (Jupiter)

0.101 R♃

Mass

1.51 M⊕

Mass (Jupiter)

0.005 M♃

Density

5.75 g/cm³

Surface Gravity

1.18 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.467

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#180of 570

top 31.4%

This planet

1.13R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

TOI-1450 A c 1.13 R⊕ Kepler-250 b 1.13 R⊕ Kepler-887 c 1.13 R⊕

Metric	Earth	Kepler-369 b	Jupiter
Radius (R⊕)	1.00	1.13	11.21
Mass (M⊕)	1.00	1.51	317.83
Density (g/cm³)	5.51	5.75	1.33
Surface Gravity (g)	1.00	1.18	2.53
Insolation (S⊕)	1.00	40.30	0.037

Star Catalogue Identifiers

TIC

TIC 26961231

Gaia DR2

Gaia DR2 2128835935094128512

Gaia DR3

Gaia DR3 2128835935094128512

System

Kepler-369

Percentile among Rocky Terrestrial cohort

Radius 1.130 R⊕ · percentile 66 / cohort 570

Mass 1.510 M⊕ · percentile 62 / cohort 570

Orbital period 2.73 d · percentile 31 / cohort 567

Distance 214.00 pc · percentile 33 / cohort 566

ESI 0.467 · percentile 67 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

2.733 days

Semi-major axis

0.0300 AU

Eccentricity

0.000

Inclination

86.76 °

Year Length

A year here lasts approximately 2.73 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0300 AU.

Transit Fingerprint

Depth

0.061 %

Duration

1.037 h

Impact parameter b

0.270

Rp / R★

0.022321

Transit midpoint (BJD)

2,455,187.0956

Photometric dip

Transit produces a flux drop of 613 ppm lasting ≈ 1.04 h.

Extended Orbital Architecture

Planet / star radius ratio

0.022321

Semi-major axis / stellar radius

19.210

Impact parameter (b)

0.270

Transit mid-time (BJD)

2,455,187.0956

Angular separation (arcsec)

0.14000

Eq. Temperature

687K

(414 °C)

Insolation (S⊕)

40.30

Earth = 1.00

Earth Similarity (ESI)

0.467

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-369

Spectral Class

M-type red dwarf

Effective Temperature

3,591 K — cooler than the Sun (5,778 K)

Estimated Age

4.17 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.471 R☉

Stellar Mass

0.500 M☉

Metallicity [Fe/H]

-0.09

Extended Stellar Properties

Surface gravity (log g)

4.785 dex

Stellar density

4.327 g/cm³

Metallicity ratio

[Fe/H]

Distance

214.00 parsec

Light-years 697.97 ly

V-band magnitude

16.43 mag

Voyager-speed travel 12,308,768 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

3.841 mas

Total Proper Motion

21.383 mas/yr

PM Right Ascension

17.95 mas/yr

PM Declination

11.62 mas/yr

Galactic Cartesian (pc)

x = 0.269 · y = -0.614 · z = 0.742

Equatorial (J2000)

RA 293.67433° · Dec 47.90847°

Galactic ℓ, b

80.403° · 13.087°

Ecliptic λ, β

315.113° · 67.674°

HTM-20 index

-1777016771