Key parameters at a glance

A radius of 1.95 Earth radii
A mass of 4.46 Earth masses
Surface gravity around 1.17 g
An orbital period of 5.057 days
Semi-major axis 0.0583 AU
Equilibrium temperature 1,049 K (776 °C)
Distance from Earth 3,707.09 light-years
Earth Similarity Index 0.260
Travel time at Voyager 1 speed 65,374,513 years

Kepler-1839 b Planet Profile

Physical Specs

Radius

1.95 R⊕

Radius (Jupiter)

0.174 R♃

Mass

4.46 M⊕

Mass (Jupiter)

0.014 M♃

Density

3.31 g/cm³

Surface Gravity

1.17 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.260

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

#75of 1176

top 6.3%

This planet

1.95R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-653 b 1.95 R⊕ Kepler-330 c 1.95 R⊕ K2-285 e 1.95 R⊕

Metric	Earth	Kepler-1839 b	Jupiter
Radius (R⊕)	1.00	1.95	11.21
Mass (M⊕)	1.00	4.46	317.83
Density (g/cm³)	5.51	3.31	1.33
Surface Gravity (g)	1.00	1.17	2.53
Insolation (S⊕)	1.00	286.32	0.037

Star Catalogue Identifiers

TIC

TIC 27082730

Gaia DR2

Gaia DR2 2135105625273603456

Gaia DR3

Gaia DR3 2135105625273603456

System

Kepler-1839

Percentile among Super-Earth cohort

Radius 1.949 R⊕ · percentile 94 / cohort 1176

Mass 4.460 M⊕ · percentile 86 / cohort 1176

Orbital period 5.06 d · percentile 41 / cohort 1164

Distance 1,136.60 pc · percentile 87 / cohort 1171

ESI 0.260 · percentile 26 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

5.057 days

Semi-major axis

0.0583 AU

Eccentricity

0.000

Inclination

85.55 °

Year Length

A year here lasts approximately 5.06 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0583 AU.

Transit Fingerprint

Depth

0.014 %

Duration

3.926 h

Impact parameter b

0.710

Rp / R★

0.011230

Transit midpoint (BJD)

2,454,967.3965

Photometric dip

Transit produces a flux drop of 138 ppm lasting ≈ 3.93 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011230

Semi-major axis / stellar radius

9.830

Impact parameter (b)

0.710

Transit mid-time (BJD)

2,454,967.3965

Angular separation (arcsec)

0.05130

Eq. Temperature

1,049K

(776 °C)

Insolation (S⊕)

286.32

Earth = 1.00

Earth Similarity (ESI)

0.260

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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-1839

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,926 K — hotter than the Sun (5,778 K)

Estimated Age

0.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.939 R☉

Stellar Mass

1.030 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.506 dex

Stellar density

0.369 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,136.60 parsec

Light-years 3,707.09 ly

V-band magnitude

14.94 mag

Voyager-speed travel 65,374,513 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.851 mas

Total Proper Motion

1.441 mas/yr

PM Right Ascension

0.68 mas/yr

PM Declination

1.27 mas/yr

Galactic Cartesian (pc)

x = 0.263 · y = -0.585 · z = 0.767

Equatorial (J2000)

RA 294.22444° · Dec 50.07558°

Galactic ℓ, b

82.566° · 13.718°

Ecliptic λ, β

318.625° · 69.458°

HTM-20 index

299926454