Key parameters at a glance

A radius of 2.92 Earth radii
A mass of 8.85 Earth masses
Surface gravity around 1.04 g
An orbital period of 7.426 days
Semi-major axis 0.0778 AU
Equilibrium temperature 1,037 K (764 °C)
Distance from Earth 3,814.62 light-years
Earth Similarity Index 0.226
Travel time at Voyager 1 speed 67,270,868 years

1 sibling around Kepler-769

Kepler-769 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-769 b this	Sub-Neptune	2.92	8.85	7.426	1,037	2016
Kepler-769 c	Super-Earth	1.79	3.86	15.987	803	2016

Kepler-769 b Planet Profile

Physical Specs

Radius

2.92 R⊕

Radius (Jupiter)

0.261 R♃

Mass

8.85 M⊕

Mass (Jupiter)

0.028 M♃

Density

1.95 g/cm³

Surface Gravity

1.04 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.226

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

#600of 1978

top 30.3%

This planet

2.92R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1475 b 2.92 R⊕ Kepler-153 b 2.92 R⊕ Kepler-709 b 2.92 R⊕

Metric	Earth	Kepler-769 b	Jupiter
Radius (R⊕)	1.00	2.92	11.21
Mass (M⊕)	1.00	8.85	317.83
Density (g/cm³)	5.51	1.95	1.33
Surface Gravity (g)	1.00	1.04	2.53
Insolation (S⊕)	1.00	241.13	0.037

Star Catalogue Identifiers

TIC

TIC 137815803

Gaia DR2

Gaia DR2 2051933343073295232

Gaia DR3

Gaia DR3 2051933343073295232

System

Kepler-769

Percentile among Sub-Neptune cohort

Radius 2.920 R⊕ · percentile 69 / cohort 1978

Mass 8.850 M⊕ · percentile 63 / cohort 1978

Orbital period 7.43 d · percentile 24 / cohort 1946

Distance 1,169.57 pc · percentile 86 / cohort 1975

ESI 0.226 · percentile 11 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

7.426 days

Semi-major axis

0.0778 AU

Eccentricity

0.000

Inclination

89.65 °

Year Length

A year here lasts approximately 7.43 Earth days (2.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0778 AU.

Transit Fingerprint

Depth

0.044 %

Duration

3.702 h

Impact parameter b

0.640

Rp / R★

0.021320

Transit midpoint (BJD)

2,454,972.9005

Photometric dip

Transit produces a flux drop of 443 ppm lasting ≈ 3.70 h.

Extended Orbital Architecture

Planet / star radius ratio

0.021320

Semi-major axis / stellar radius

15.830

Impact parameter (b)

0.640

Transit mid-time (BJD)

2,454,972.9005

Angular separation (arcsec)

0.06650

Eq. Temperature

1,037K

(764 °C)

Insolation (S⊕)

241.13

Earth = 1.00

Earth Similarity (ESI)

0.226

0 = alien, 1 = Earth-identical

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

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-769

Spectral Class

F-type yellow-white

Effective Temperature

6,186 K — hotter than the Sun (5,778 K)

Estimated Age

2.88 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.280 R☉

Stellar Mass

1.190 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.300 dex

Stellar density

1.362 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,169.57 parsec

Light-years 3,814.62 ly

V-band magnitude

14.98 mag

Voyager-speed travel 67,270,868 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.827 mas

Total Proper Motion

7.121 mas/yr

PM Right Ascension

-1.98 mas/yr

PM Declination

-6.84 mas/yr

Galactic Cartesian (pc)

x = 0.303 · y = -0.723 · z = 0.621

Equatorial (J2000)

RA 292.71309° · Dec 38.35817°

Galactic ℓ, b

71.385° · 9.413°

Ecliptic λ, β

305.992° · 58.992°

HTM-20 index

1333583529