Key parameters at a glance

A radius of 1.09 Earth radii
A mass of 1.32 Earth masses
Surface gravity around 1.11 g
An orbital period of 0.992 days
Semi-major axis 0.0205 AU
Equilibrium temperature 2,102 K (1829 °C)
Distance from Earth 4,935.20 light-years
Earth Similarity Index 0.135
Travel time at Voyager 1 speed 87,032,192 years

Kepler-1589 b Planet Profile

Physical Specs

Radius

1.09 R⊕

Radius (Jupiter)

0.097 R♃

Mass

1.32 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.60 g/cm³

Surface Gravity

1.11 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.135

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

#240of 570

top 41.9%

This planet

1.09R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

TOI-5720 b 1.09 R⊕ Kepler-115 b 1.09 R⊕ Kepler-212 b 1.09 R⊕

Metric	Earth	Kepler-1589 b	Jupiter
Radius (R⊕)	1.00	1.09	11.21
Mass (M⊕)	1.00	1.32	317.83
Density (g/cm³)	5.51	5.60	1.33
Surface Gravity (g)	1.00	1.11	2.53
Insolation (S⊕)	1.00	5,228.79	0.037

Star Catalogue Identifiers

TIC

TIC 377909767

Gaia DR2

Gaia DR2 2076565908231148928

Gaia DR3

Gaia DR3 2076565908231148928

System

Kepler-1589

Percentile among Rocky Terrestrial cohort

Radius 1.090 R⊕ · percentile 56 / cohort 570

Mass 1.320 M⊕ · percentile 51 / cohort 570

Orbital period 0.99 d · percentile 12 / cohort 567

Distance 1,513.14 pc · percentile 99 / cohort 566

ESI 0.135 · percentile 3 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

0.992 days

Semi-major axis

0.0205 AU

Eccentricity

0.000

Inclination

71.48 °

Year Length

A year here lasts roughly 23.8 hours long on a nearly circular orbit at a mean orbital distance of 0.0205 AU.

Transit Fingerprint

Depth

0.008 %

Duration

2.378 h

Impact parameter b

0.224

Rp / R★

0.008138

Transit midpoint (BJD)

2,454,964.5350

Photometric dip

Transit produces a flux drop of 77 ppm lasting ≈ 2.38 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008138

Semi-major axis / stellar radius

3.192

Impact parameter (b)

0.224

Transit mid-time (BJD)

2,454,964.5350

Angular separation (arcsec)

0.01350

Eq. Temperature

2,102K

(1829 °C)

Insolation (S⊕)

5,228.79

Earth = 1.00

Earth Similarity (ESI)

0.135

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-1589

Spectral Class

F-type yellow-white

Effective Temperature

6,166 K — hotter than the Sun (5,778 K)

Estimated Age

2.75 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.250 R☉

Stellar Mass

1.180 M☉

Metallicity [Fe/H]

0.08

Extended Stellar Properties

Surface gravity (log g)

4.320 dex

Stellar density

0.626 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,513.14 parsec

Light-years 4,935.20 ly

V-band magnitude

15.07 mag

Voyager-speed travel 87,032,192 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.633 mas

Total Proper Motion

9.491 mas/yr

PM Right Ascension

-3.40 mas/yr

PM Declination

-8.86 mas/yr

Galactic Cartesian (pc)

x = 0.314 · y = -0.692 · z = 0.650

Equatorial (J2000)

RA 294.44182° · Dec 40.57161°

Galactic ℓ, b

73.999° · 9.256°

Ecliptic λ, β

309.907° · 60.668°

HTM-20 index

1523100640