Key parameters at a glance

A radius of 2.80 Earth radii
A mass of 8.25 Earth masses
Surface gravity around 1.05 g
An orbital period of 21.864 days
Semi-major axis 0.1466 AU
Equilibrium temperature 551 K (278 °C)
Distance from Earth 3,781.13 light-years
Earth Similarity Index 0.435
Travel time at Voyager 1 speed 66,680,162 years

Kepler-1469 b Planet Profile

Physical Specs

Radius

2.80 R⊕

Radius (Jupiter)

0.250 R♃

Mass

8.25 M⊕

Mass (Jupiter)

0.026 M♃

Density

2.07 g/cm³

Surface Gravity

1.05 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.435

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

#742of 1978

top 37.5%

This planet

2.80R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-694 b 2.80 R⊕ Kepler-276 d 2.80 R⊕ Kepler-350 d 2.80 R⊕

Metric	Earth	Kepler-1469 b	Jupiter
Radius (R⊕)	1.00	2.80	11.21
Mass (M⊕)	1.00	8.25	317.83
Density (g/cm³)	5.51	2.07	1.33
Surface Gravity (g)	1.00	1.05	2.53
Insolation (S⊕)	1.00	24.90	0.037

Star Catalogue Identifiers

TIC

TIC 138423341

Gaia DR2

Gaia DR2 2052456263933727744

Gaia DR3

Gaia DR3 2052456263933727744

System

Kepler-1469

Percentile among Sub-Neptune cohort

Radius 2.800 R⊕ · percentile 62 / cohort 1978

Mass 8.250 M⊕ · percentile 57 / cohort 1978

Orbital period 21.86 d · percentile 65 / cohort 1946

Distance 1,159.30 pc · percentile 85 / cohort 1975

ESI 0.435 · percentile 59 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

21.864 days

Semi-major axis

0.1466 AU

Eccentricity

0.000

Inclination

89.32 °

Year Length

A year here lasts approximately 21.86 Earth days (6.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1466 AU.

Transit Fingerprint

Depth

0.098 %

Duration

3.582 h

Impact parameter b

0.440

Rp / R★

0.028813

Transit midpoint (BJD)

2,454,978.2400

Photometric dip

Transit produces a flux drop of 976 ppm lasting ≈ 3.58 h.

Extended Orbital Architecture

Planet / star radius ratio

0.028813

Semi-major axis / stellar radius

42.300

Impact parameter (b)

0.440

Transit mid-time (BJD)

2,454,978.2400

Angular separation (arcsec)

0.12600

Eq. Temperature

551K

(278 °C)

Insolation (S⊕)

24.90

Earth = 1.00

Earth Similarity (ESI)

0.435

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-1469

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,507 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.890 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.510 dex

Stellar density

3.227 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,159.30 parsec

Light-years 3,781.13 ly

V-band magnitude

16.24 mag

Voyager-speed travel 66,680,162 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.836 mas

Total Proper Motion

5.517 mas/yr

PM Right Ascension

-1.65 mas/yr

PM Declination

-5.26 mas/yr

Galactic Cartesian (pc)

x = 0.312 · y = -0.707 · z = 0.635

Equatorial (J2000)

RA 293.82133° · Dec 39.39134°

Galactic ℓ, b

72.717° · 9.125°

Ecliptic λ, β

308.227° · 59.709°

HTM-20 index

1289336188