Key parameters at a glance

A radius of 0.90 Earth radii
A mass of 0.68 Earth masses
Surface gravity around 0.83 g
An orbital period of 3.720 days
Semi-major axis 0.0429 AU
Equilibrium temperature 954 K (681 °C)
Distance from Earth 1,256.84 light-years
Earth Similarity Index 0.331
Travel time at Voyager 1 speed 22,164,295 years
Almost certainly tidally locked to its host star given the close orbit

Kepler-1759 b Planet Profile

Physical Specs

Radius

0.90 R⊕

Radius (Jupiter)

0.081 R♃

Mass

0.68 M⊕

Mass (Jupiter)

0.002 M♃

Density

5.03 g/cm³

Surface Gravity

0.83 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.331

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#413of 570

top 72.3%

This planet

0.90R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

TOI-540 b 0.90 R⊕ Kepler-1398 b 0.90 R⊕ Kepler-1547 b 0.90 R⊕

Metric	Earth	Kepler-1759 b	Jupiter
Radius (R⊕)	1.00	0.90	11.21
Mass (M⊕)	1.00	0.68	317.83
Density (g/cm³)	5.51	5.03	1.33
Surface Gravity (g)	1.00	0.83	2.53
Insolation (S⊕)	1.00	195.70	0.037

Star Catalogue Identifiers

TIC

TIC 267989857

Gaia DR2

Gaia DR2 2086879189856001024

Gaia DR3

Gaia DR3 2086879189856001024

System

Kepler-1759

Percentile among Rocky Terrestrial cohort

Radius 0.904 R⊕ · percentile 28 / cohort 570

Mass 0.676 M⊕ · percentile 23 / cohort 570

Orbital period 3.72 d · percentile 40 / cohort 567

Distance 385.35 pc · percentile 51 / cohort 566

ESI 0.331 · percentile 47 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

3.720 days

Semi-major axis

0.0429 AU

Eccentricity

0.000

Inclination

88.63 °

Year Length

A year here lasts approximately 3.72 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0429 AU.

Transit Fingerprint

Depth

0.016 %

Duration

1.939 h

Impact parameter b

0.420

Rp / R★

0.011840

Transit midpoint (BJD)

2,454,966.4183

Photometric dip

Transit produces a flux drop of 157 ppm lasting ≈ 1.94 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011840

Semi-major axis / stellar radius

14.750

Impact parameter (b)

0.420

Transit mid-time (BJD)

2,454,966.4183

Angular separation (arcsec)

0.11100

Eq. Temperature

954K

(681 °C)

Insolation (S⊕)

195.70

Earth = 1.00

Earth Similarity (ESI)

0.331

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at Kepler (12 shown).

Kepler-1816 b · Super-Earth Kepler-1705 c · Sub-Neptune Kepler-1948 b · Rocky Terrestrial Kepler-196 d · Sub-Neptune Kepler-1853 b · Super-Earth Kepler-1840 b · Sub-Neptune Kepler-1881 b · Sub-Neptune Kepler-1858 b · Sub-Neptune Kepler-1874 b · Sub-Neptune Kepler-1802 c · Sub-Neptune Kepler-1749 b · Super-Earth Kepler-1849 b · Sub-Neptune

Host System: Kepler-1759

Spectral Class

K-type orange

Effective Temperature

5,017 K — cooler than the Sun (5,778 K)

Estimated Age

13.80 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.797 R☉

Stellar Mass

0.760 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.516 dex

Stellar density

4.010 g/cm³

Metallicity ratio

[Fe/H]

Distance

385.35 parsec

Light-years 1,256.84 ly

V-band magnitude

14.53 mag

Voyager-speed travel 22,164,295 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.566 mas

Total Proper Motion

33.535 mas/yr

PM Right Ascension

-30.70 mas/yr

PM Declination

-13.49 mas/yr

Galactic Cartesian (pc)

x = 0.315 · y = -0.582 · z = 0.750

Equatorial (J2000)

RA 298.46563° · Dec 48.55933°

Galactic ℓ, b

82.508° · 10.566°

Ecliptic λ, β

323.238° · 66.812°

HTM-20 index

1532877722