Key parameters at a glance

A radius of 2.39 Earth radii
A mass of 6.30 Earth masses
Surface gravity around 1.10 g
An orbital period of 2.820 days
Semi-major axis 0.0397 AU
Equilibrium temperature 1,367 K (1094 °C)
Distance from Earth 3,761.00 light-years
Earth Similarity Index 0.179
Travel time at Voyager 1 speed 66,325,279 years

Kepler-592 b Planet Profile

Physical Specs

Radius

2.39 R⊕

Radius (Jupiter)

0.213 R♃

Mass

6.30 M⊕

Mass (Jupiter)

0.020 M♃

Density

2.54 g/cm³

Surface Gravity

1.10 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.179

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

#1343of 1978

top 67.8%

This planet

2.39R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-193 b 2.39 R⊕ Kepler-152 c 2.39 R⊕ Kepler-238 c 2.39 R⊕

Metric	Earth	Kepler-592 b	Jupiter
Radius (R⊕)	1.00	2.39	11.21
Mass (M⊕)	1.00	6.30	317.83
Density (g/cm³)	5.51	2.54	1.33
Surface Gravity (g)	1.00	1.10	2.53
Insolation (S⊕)	1.00	935.83	0.037

Star Catalogue Identifiers

TIC

TIC 377782184

Gaia DR2

Gaia DR2 2131920370147385472

Gaia DR3

Gaia DR3 2131920370147385472

System

Kepler-592

Percentile among Sub-Neptune cohort

Radius 2.390 R⊕ · percentile 31 / cohort 1978

Mass 6.300 M⊕ · percentile 30 / cohort 1978

Orbital period 2.82 d · percentile 4 / cohort 1946

Distance 1,153.13 pc · percentile 85 / cohort 1975

ESI 0.179 · percentile 4 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

2.820 days

Semi-major axis

0.0397 AU

Eccentricity

0.000

Inclination

84.91 °

Year Length

A year here lasts approximately 2.82 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0397 AU.

Transit Fingerprint

Depth

0.047 %

Duration

2.508 h

Impact parameter b

0.484

Rp / R★

0.020549

Transit midpoint (BJD)

2,455,003.7876

Photometric dip

Transit produces a flux drop of 468 ppm lasting ≈ 2.51 h.

Extended Orbital Architecture

Planet / star radius ratio

0.020549

Semi-major axis / stellar radius

7.750

Impact parameter (b)

0.484

Transit mid-time (BJD)

2,455,003.7876

Angular separation (arcsec)

0.03440

Eq. Temperature

1,367K

(1094 °C)

Insolation (S⊕)

935.83

Earth = 1.00

Earth Similarity (ESI)

0.179

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-592

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,913 K — hotter than the Sun (5,778 K)

Estimated Age

3.89 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.040 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

-0.03

Extended Stellar Properties

Surface gravity (log g)

4.420 dex

Stellar density

1.108 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,153.13 parsec

Light-years 3,761.00 ly

V-band magnitude

14.85 mag

Voyager-speed travel 66,325,279 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.838 mas

Total Proper Motion

8.941 mas/yr

PM Right Ascension

-0.29 mas/yr

PM Declination

-8.94 mas/yr

Galactic Cartesian (pc)

x = 0.180 · y = -0.635 · z = 0.751

Equatorial (J2000)

RA 285.79074° · Dec 48.68324°

Galactic ℓ, b

78.976° · 18.206°

Ecliptic λ, β

302.303° · 70.357°

HTM-20 index

-247179328