Key parameters at a glance

A radius of 2.31 Earth radii
A mass of 5.95 Earth masses
Surface gravity around 1.12 g
An orbital period of 52.069 days
Semi-major axis 0.2739 AU
Equilibrium temperature 524 K (251 °C)
Distance from Earth 3,005.07 light-years
Earth Similarity Index 0.490
Travel time at Voyager 1 speed 52,994,480 years

Kepler-926 b Planet Profile

Physical Specs

Radius

2.31 R⊕

Radius (Jupiter)

0.206 R♃

Mass

5.95 M⊕

Mass (Jupiter)

0.019 M♃

Density

2.65 g/cm³

Surface Gravity

1.12 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.490

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

#1486of 1978

top 75.1%

This planet

2.31R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-624 b 2.31 R⊕ Kepler-244 d 2.31 R⊕ Kepler-981 b 2.31 R⊕

Metric	Earth	Kepler-926 b	Jupiter
Radius (R⊕)	1.00	2.31	11.21
Mass (M⊕)	1.00	5.95	317.83
Density (g/cm³)	5.51	2.65	1.33
Surface Gravity (g)	1.00	1.12	2.53
Insolation (S⊕)	1.00	17.88	0.037

Star Catalogue Identifiers

TIC

TIC 394174412

Gaia DR2

Gaia DR2 2101378312251177472

Gaia DR3

Gaia DR3 2101378312251177472

System

Kepler-926

Percentile among Sub-Neptune cohort

Radius 2.310 R⊕ · percentile 25 / cohort 1978

Mass 5.950 M⊕ · percentile 24 / cohort 1978

Orbital period 52.07 d · percentile 86 / cohort 1946

Distance 921.36 pc · percentile 73 / cohort 1975

ESI 0.490 · percentile 69 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

52.069 days

Semi-major axis

0.2739 AU

Eccentricity

0.000

Inclination

89.88 °

Year Length

A year here lasts approximately 52.07 Earth days (14.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2739 AU.

Transit Fingerprint

Depth

0.052 %

Duration

3.044 h

Impact parameter b

0.830

Rp / R★

0.020800

Transit midpoint (BJD)

2,455,011.1561

Photometric dip

Transit produces a flux drop of 521 ppm lasting ≈ 3.04 h.

Extended Orbital Architecture

Planet / star radius ratio

0.020800

Semi-major axis / stellar radius

132.000

Impact parameter (b)

0.830

Transit mid-time (BJD)

2,455,011.1561

Angular separation (arcsec)

0.29700

Eq. Temperature

524K

(251 °C)

Insolation (S⊕)

17.88

Earth = 1.00

Earth Similarity (ESI)

0.490

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-926

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,806 K — hotter than the Sun (5,778 K)

Estimated Age

4.37 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.010 R☉

Stellar Mass

1.010 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.430 dex

Stellar density

16.037 g/cm³

Metallicity ratio

[Fe/H]

Distance

921.36 parsec

Light-years 3,005.07 ly

V-band magnitude

14.43 mag

Voyager-speed travel 52,994,480 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.058 mas

Total Proper Motion

7.570 mas/yr

PM Right Ascension

-2.54 mas/yr

PM Declination

-7.13 mas/yr

Galactic Cartesian (pc)

x = 0.255 · y = -0.714 · z = 0.652

Equatorial (J2000)

RA 289.67934° · Dec 40.70043°

Galactic ℓ, b

72.472° · 12.546°

Ecliptic λ, β

302.836° · 61.915°

HTM-20 index

-1573924900