Key parameters at a glance

A radius of 4.02 Earth radii
A mass of 15.20 Earth masses
Surface gravity around 0.94 g
An orbital period of 5.853 days
Semi-major axis 0.0647 AU
Equilibrium temperature 1,056 K (783 °C)
Distance from Earth 4,637.32 light-years
Earth Similarity Index 0.194
Travel time at Voyager 1 speed 81,779,109 years

Kepler-590 b Planet Profile

Physical Specs

Radius

4.02 R⊕

Radius (Jupiter)

0.359 R♃

Mass

15.20 M⊕

Mass (Jupiter)

0.048 M♃

Density

1.29 g/cm³

Surface Gravity

0.94 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.194

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

#565of 574

top 98.3%

This planet

4.02R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

K2-360 c 4.02 R⊕ Kepler-33 e 4.02 R⊕ Kepler-359 d 4.01 R⊕

Metric	Earth	Kepler-590 b	Jupiter
Radius (R⊕)	1.00	4.02	11.21
Mass (M⊕)	1.00	15.20	317.83
Density (g/cm³)	5.51	1.29	1.33
Surface Gravity (g)	1.00	0.94	2.53
Insolation (S⊕)	1.00	782.42	0.037

Star Catalogue Identifiers

TIC

TIC 27905500

Gaia DR2

Gaia DR2 2086681002884954240

Gaia DR3

Gaia DR3 2086681002884954240

System

Kepler-590

Percentile among Neptune-like cohort

Radius 4.020 R⊕ · percentile 1 / cohort 574

Mass 15.200 M⊕ · percentile 7 / cohort 574

Orbital period 5.85 d · percentile 24 / cohort 524

Distance 1,421.81 pc · percentile 83 / cohort 572

ESI 0.194 · percentile 26 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

5.853 days

Semi-major axis

0.0647 AU

Eccentricity

0.000

Inclination

88.11 °

Year Length

A year here lasts approximately 5.85 Earth days (1.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0647 AU.

Transit Fingerprint

Depth

0.115 %

Duration

4.600 h

Impact parameter b

0.316

Rp / R★

0.031751

Transit midpoint (BJD)

2,455,004.1823

Photometric dip

Transit produces a flux drop of 1,147 ppm lasting ≈ 4.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.031751

Semi-major axis / stellar radius

10.100

Impact parameter (b)

0.316

Transit mid-time (BJD)

2,455,004.1823

Angular separation (arcsec)

0.04550

Eq. Temperature

1,056K

(783 °C)

Insolation (S⊕)

782.42

Earth = 1.00

Earth Similarity (ESI)

0.194

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-590

Spectral Class

F-type yellow-white

Effective Temperature

6,000 K — hotter than the Sun (5,778 K)

Estimated Age

3.55 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.150 R☉

Stellar Mass

1.100 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.350 dex

Stellar density

0.484 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,421.81 parsec

Light-years 4,637.32 ly

V-band magnitude

14.55 mag

Voyager-speed travel 81,779,109 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.675 mas

Total Proper Motion

3.844 mas/yr

PM Right Ascension

0.96 mas/yr

PM Declination

-3.72 mas/yr

Galactic Cartesian (pc)

x = 0.296 · y = -0.597 · z = 0.746

Equatorial (J2000)

RA 296.38555° · Dec 48.23342°

Galactic ℓ, b

81.542° · 11.622°

Ecliptic λ, β

319.726° · 67.172°

HTM-20 index

1985799580