Key parameters at a glance

A radius of 3.64 Earth radii
A mass of 12.90 Earth masses
Surface gravity around 0.97 g
An orbital period of 4.244 days
Semi-major axis 0.0501 AU
Equilibrium temperature 1,063 K (790 °C)
Distance from Earth 3,395.28 light-years
Earth Similarity Index 0.201
Travel time at Voyager 1 speed 59,875,829 years

Kepler-565 b Planet Profile

Physical Specs

Radius

3.64 R⊕

Radius (Jupiter)

0.325 R♃

Mass

12.90 M⊕

Mass (Jupiter)

0.041 M♃

Density

1.47 g/cm³

Surface Gravity

0.97 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.201

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

#120of 1978

top 6.0%

This planet

3.64R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-150 f 3.64 R⊕ Kepler-1635 b 3.64 R⊕ Kepler-608 b 3.64 R⊕

Metric	Earth	Kepler-565 b	Jupiter
Radius (R⊕)	1.00	3.64	11.21
Mass (M⊕)	1.00	12.90	317.83
Density (g/cm³)	5.51	1.47	1.33
Surface Gravity (g)	1.00	0.97	2.53
Insolation (S⊕)	1.00	301.46	0.037

Star Catalogue Identifiers

TIC

TIC 164556745

System

Kepler-565

Percentile among Sub-Neptune cohort

Radius 3.640 R⊕ · percentile 94 / cohort 1978

Mass 12.900 M⊕ · percentile 87 / cohort 1978

Orbital period 4.24 d · percentile 9 / cohort 1946

Distance 1,041.00 pc · percentile 81 / cohort 1975

ESI 0.201 · percentile 7 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

4.244 days

Semi-major axis

0.0501 AU

Eccentricity

0.000

Inclination

89.82 °

Year Length

A year here lasts approximately 4.24 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0501 AU.

Transit Fingerprint

Depth

0.148 %

Duration

3.368 h

Impact parameter b

0.024

Rp / R★

0.035143

Transit midpoint (BJD)

2,455,006.5633

Photometric dip

Transit produces a flux drop of 1,478 ppm lasting ≈ 3.37 h.

Extended Orbital Architecture

Planet / star radius ratio

0.035143

Semi-major axis / stellar radius

9.981

Impact parameter (b)

0.024

Transit mid-time (BJD)

2,455,006.5633

Angular separation (arcsec)

0.04810

Eq. Temperature

1,063K

(790 °C)

Insolation (S⊕)

301.46

Earth = 1.00

Earth Similarity (ESI)

0.201

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-565

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,735 K — cooler than the Sun (5,778 K)

Estimated Age

4.07 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.950 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.470 dex

Stellar density

1.044 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,041.00 parsec

Light-years 3,395.28 ly

V-band magnitude

15.23 mag

Voyager-speed travel 59,875,829 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Total Proper Motion

9.605 mas/yr

PM Right Ascension

6.54 mas/yr

PM Declination

7.03 mas/yr

Galactic Cartesian (pc)

x = 0.160 · y = -0.660 · z = 0.734

Equatorial (J2000)

RA 283.61808° · Dec 47.19678°

Galactic ℓ, b

76.974° · 19.059°

Ecliptic λ, β

296.992° · 69.363°

HTM-20 index

1372638554