Key parameters at a glance

A radius of 2.65 Earth radii
A mass of 7.51 Earth masses
Surface gravity around 1.07 g
An orbital period of 31.335 days
Semi-major axis 0.2054 AU
Equilibrium temperature 666 K (393 °C)
Distance from Earth 4,874.04 light-years
Earth Similarity Index 0.372
Travel time at Voyager 1 speed 85,953,737 years

Kepler-1941 b Planet Profile

Physical Specs

Radius

2.65 R⊕

Radius (Jupiter)

0.236 R♃

Mass

7.51 M⊕

Mass (Jupiter)

0.024 M♃

Density

2.22 g/cm³

Surface Gravity

1.07 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.372

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

#955of 1978

top 48.2%

This planet

2.65R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-109 c 2.65 R⊕ Kepler-375 c 2.65 R⊕ Kepler-253 c 2.65 R⊕

Metric	Earth	Kepler-1941 b	Jupiter
Radius (R⊕)	1.00	2.65	11.21
Mass (M⊕)	1.00	7.51	317.83
Density (g/cm³)	5.51	2.22	1.33
Surface Gravity (g)	1.00	1.07	2.53
Insolation (S⊕)	1.00	46.53	0.037

Star Catalogue Identifiers

TIC

TIC 351191396

Gaia DR2

Gaia DR2 2086844692677679872

Gaia DR3

Gaia DR3 2086844692677679872

System

Kepler-1941

Percentile among Sub-Neptune cohort

Radius 2.650 R⊕ · percentile 52 / cohort 1978

Mass 7.510 M⊕ · percentile 48 / cohort 1978

Orbital period 31.34 d · percentile 75 / cohort 1946

Distance 1,494.39 pc · percentile 93 / cohort 1975

ESI 0.372 · percentile 46 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

31.335 days

Semi-major axis

0.2054 AU

Eccentricity

0.000

Inclination

88.60 °

Year Length

A year here lasts approximately 31.34 Earth days (8.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2054 AU.

Transit Fingerprint

Depth

0.026 %

Duration

6.071 h

Impact parameter b

0.706

Rp / R★

0.015531

Transit midpoint (BJD)

2,454,969.9754

Photometric dip

Transit produces a flux drop of 265 ppm lasting ≈ 6.07 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015531

Semi-major axis / stellar radius

30.700

Impact parameter (b)

0.706

Transit mid-time (BJD)

2,454,969.9754

Angular separation (arcsec)

0.13700

Eq. Temperature

666K

(393 °C)

Insolation (S⊕)

46.53

Earth = 1.00

Earth Similarity (ESI)

0.372

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

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-1941

Spectral Class

F-type yellow-white

Effective Temperature

6,404 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.142 R☉

Stellar Mass

1.175 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

4.393 dex

Stellar density

0.461 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,494.39 parsec

Light-years 4,874.04 ly

V-band magnitude

14.94 mag

Voyager-speed travel 85,953,737 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.641 mas

Total Proper Motion

5.562 mas/yr

PM Right Ascension

-3.58 mas/yr

PM Declination

-4.25 mas/yr

Galactic Cartesian (pc)

x = 0.292 · y = -0.582 · z = 0.759

Equatorial (J2000)

RA 296.62702° · Dec 49.35389°

Galactic ℓ, b

82.630° · 12.006°

Ecliptic λ, β

321.470° · 68.089°

HTM-20 index

1754641642