Key parameters at a glance

A radius of 1.19 Earth radii
A mass of 1.81 Earth masses
Surface gravity around 1.28 g
An orbital period of 1.538 days
Semi-major axis 0.0241 AU
Equilibrium temperature 1,234 K (961 °C)
Distance from Earth 2,054.55 light-years
Earth Similarity Index 0.247
Travel time at Voyager 1 speed 36,232,066 years
Almost certainly tidally locked to its host star given the close orbit

Kepler-1565 b Planet Profile

Physical Specs

Radius

1.19 R⊕

Radius (Jupiter)

0.106 R♃

Mass

1.81 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.90 g/cm³

Surface Gravity

1.28 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.247

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

#101of 570

top 17.5%

This planet

1.19R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

KOI-351 c 1.19 R⊕ Kepler-953 c 1.19 R⊕ Kepler-310 b 1.19 R⊕

Metric	Earth	Kepler-1565 b	Jupiter
Radius (R⊕)	1.00	1.19	11.21
Mass (M⊕)	1.00	1.81	317.83
Density (g/cm³)	5.51	5.90	1.33
Surface Gravity (g)	1.00	1.28	2.53
Insolation (S⊕)	1.00	510.57	0.037

Star Catalogue Identifiers

TIC

TIC 170241112

Gaia DR2

Gaia DR2 2073793249146651136

Gaia DR3

Gaia DR3 2073793249146651136

System

Kepler-1565

Percentile among Rocky Terrestrial cohort

Radius 1.190 R⊕ · percentile 80 / cohort 570

Mass 1.810 M⊕ · percentile 74 / cohort 570

Orbital period 1.54 d · percentile 17 / cohort 567

Distance 629.93 pc · percentile 76 / cohort 566

ESI 0.247 · percentile 25 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.538 days

Semi-major axis

0.0241 AU

Eccentricity

0.000

Inclination

82.28 °

Year Length

A year here lasts approximately 1.54 Earth days (0.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0241 AU.

Transit Fingerprint

Depth

0.027 %

Duration

1.702 h

Impact parameter b

0.245

Rp / R★

0.014887

Transit midpoint (BJD)

2,454,965.4894

Photometric dip

Transit produces a flux drop of 272 ppm lasting ≈ 1.70 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014887

Semi-major axis / stellar radius

6.827

Impact parameter (b)

0.245

Transit mid-time (BJD)

2,454,965.4894

Angular separation (arcsec)

0.03830

Eq. Temperature

1,234K

(961 °C)

Insolation (S⊕)

510.57

Earth = 1.00

Earth Similarity (ESI)

0.247

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.

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-1565

Spectral Class

K-type orange

Effective Temperature

4,940 K — cooler than the Sun (5,778 K)

Estimated Age

5.62 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.730 R☉

Stellar Mass

0.760 M☉

Metallicity [Fe/H]

-0.16

Extended Stellar Properties

Surface gravity (log g)

4.600 dex

Stellar density

2.544 g/cm³

Metallicity ratio

[Fe/H]

Distance

629.93 parsec

Light-years 2,054.55 ly

V-band magnitude

15.38 mag

Voyager-speed travel 36,232,066 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

1.559 mas

Total Proper Motion

1.260 mas/yr

PM Right Ascension

0.00 mas/yr

PM Declination

-1.26 mas/yr

Galactic Cartesian (pc)

x = 0.355 · y = -0.669 · z = 0.654

Equatorial (J2000)

RA 297.95298° · Dec 40.80679°

Galactic ℓ, b

75.510° · 7.041°

Ecliptic λ, β

315.103° · 59.945°

HTM-20 index

-74104200