Key parameters at a glance

A radius of 1.55 Earth radii
A mass of 3.02 Earth masses
Surface gravity around 1.26 g
An orbital period of 4.850 days
Semi-major axis 0.0598 AU
Equilibrium temperature 1,098 K (825 °C)
Distance from Earth 3,276.40 light-years
Earth Similarity Index 0.267
Travel time at Voyager 1 speed 57,779,313 years

Kepler-1943 b Planet Profile

Physical Specs

Radius

1.55 R⊕

Radius (Jupiter)

0.138 R♃

Mass

3.02 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.47 g/cm³

Surface Gravity

1.26 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.267

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

#667of 1176

top 56.6%

This planet

1.55R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-226 b 1.55 R⊕ Kepler-55 e 1.55 R⊕ Kepler-132 d 1.55 R⊕

Metric	Earth	Kepler-1943 b	Jupiter
Radius (R⊕)	1.00	1.55	11.21
Mass (M⊕)	1.00	3.02	317.83
Density (g/cm³)	5.51	4.47	1.33
Surface Gravity (g)	1.00	1.26	2.53
Insolation (S⊕)	1.00	724.20	0.037

Star Catalogue Identifiers

TIC

TIC 138100223

Gaia DR2

Gaia DR2 2077381299180152704

Gaia DR3

Gaia DR3 2077381299180152704

System

Kepler-1943

Percentile among Super-Earth cohort

Radius 1.549 R⊕ · percentile 43 / cohort 1176

Mass 3.020 M⊕ · percentile 39 / cohort 1176

Orbital period 4.85 d · percentile 39 / cohort 1164

Distance 1,004.55 pc · percentile 81 / cohort 1171

ESI 0.267 · percentile 28 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.850 days

Semi-major axis

0.0598 AU

Eccentricity

0.000

Inclination

56.15 °

Year Length

A year here lasts approximately 4.85 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0597 AU.

Transit Fingerprint

Depth

0.006 %

Duration

5.676 h

Impact parameter b

0.228

Rp / R★

0.007534

Transit midpoint (BJD)

2,454,968.3116

Photometric dip

Transit produces a flux drop of 65 ppm lasting ≈ 5.68 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007534

Semi-major axis / stellar radius

1.769

Impact parameter (b)

0.228

Transit mid-time (BJD)

2,454,968.3116

Angular separation (arcsec)

0.05950

Eq. Temperature

1,098K

(825 °C)

Insolation (S⊕)

724.20

Earth = 1.00

Earth Similarity (ESI)

0.267

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-1943

Spectral Class

F-type yellow-white

Effective Temperature

6,032 K — hotter than the Sun (5,778 K)

Estimated Age

5.25 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.973 R☉

Stellar Mass

1.055 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

4.485 dex

Stellar density

0.004 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,004.55 parsec

Light-years 3,276.40 ly

V-band magnitude

13.87 mag

Voyager-speed travel 57,779,313 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.967 mas

Total Proper Motion

5.330 mas/yr

PM Right Ascension

0.25 mas/yr

PM Declination

5.32 mas/yr

Galactic Cartesian (pc)

x = 0.298 · y = -0.692 · z = 0.658

Equatorial (J2000)

RA 293.31830° · Dec 41.11667°

Galactic ℓ, b

74.090° · 10.261°

Ecliptic λ, β

308.626° · 61.465°

HTM-20 index

1892417547