Key parameters at a glance

A radius of 1.45 Earth radii
A mass of 2.69 Earth masses
Surface gravity around 1.29 g
An orbital period of 3.424 days
Semi-major axis 0.0451 AU
Equilibrium temperature 1,212 K (939 °C)
Distance from Earth 3,429.63 light-years
Earth Similarity Index 0.244
Travel time at Voyager 1 speed 60,481,490 years

Kepler-1905 b Planet Profile

Physical Specs

Radius

1.45 R⊕

Radius (Jupiter)

0.129 R♃

Mass

2.69 M⊕

Mass (Jupiter)

0.008 M♃

Density

4.89 g/cm³

Surface Gravity

1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.244

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

#849of 1176

top 72.1%

This planet

1.45R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1226 b 1.45 R⊕ Kepler-375 b 1.45 R⊕ Kepler-361 b 1.45 R⊕

Metric	Earth	Kepler-1905 b	Jupiter
Radius (R⊕)	1.00	1.45	11.21
Mass (M⊕)	1.00	2.69	317.83
Density (g/cm³)	5.51	4.89	1.33
Surface Gravity (g)	1.00	1.29	2.53
Insolation (S⊕)	1.00	508.75	0.037

Star Catalogue Identifiers

TIC

TIC 63362238

Gaia DR2

Gaia DR2 2128263776731304960

Gaia DR3

Gaia DR3 2128263776731304960

System

Kepler-1905

Percentile among Super-Earth cohort

Radius 1.446 R⊕ · percentile 28 / cohort 1176

Mass 2.690 M⊕ · percentile 26 / cohort 1176

Orbital period 3.42 d · percentile 26 / cohort 1164

Distance 1,051.53 pc · percentile 83 / cohort 1171

ESI 0.244 · percentile 22 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

3.424 days

Semi-major axis

0.0451 AU

Eccentricity

0.000

Inclination

89.16 °

Year Length

A year here lasts approximately 3.42 Earth days (0.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0451 AU.

Transit Fingerprint

Depth

0.015 %

Duration

1.794 h

Impact parameter b

0.213

Rp / R★

0.011291

Transit midpoint (BJD)

2,454,965.8801

Photometric dip

Transit produces a flux drop of 153 ppm lasting ≈ 1.79 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011291

Semi-major axis / stellar radius

14.590

Impact parameter (b)

0.213

Transit mid-time (BJD)

2,454,965.8801

Angular separation (arcsec)

0.04290

Eq. Temperature

1,212K

(939 °C)

Insolation (S⊕)

508.75

Earth = 1.00

Earth Similarity (ESI)

0.244

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-1905

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,788 K — hotter than the Sun (5,778 K)

Estimated Age

0.30 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.015 R☉

Stellar Mass

1.038 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.442 dex

Stellar density

5.016 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,051.53 parsec

Light-years 3,429.63 ly

V-band magnitude

15.09 mag

Voyager-speed travel 60,481,490 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.923 mas

Total Proper Motion

1.991 mas/yr

PM Right Ascension

1.43 mas/yr

PM Declination

-1.39 mas/yr

Galactic Cartesian (pc)

x = 0.265 · y = -0.637 · z = 0.724

Equatorial (J2000)

RA 292.57335° · Dec 46.36683°

Galactic ℓ, b

78.643° · 13.086°

Ecliptic λ, β

311.754° · 66.564°

HTM-20 index

-956811953