Key parameters at a glance

A radius of 1.71 Earth radii
A mass of 3.55 Earth masses
Surface gravity around 1.22 g
An orbital period of 4.179 days
Semi-major axis 0.0504 AU
Equilibrium temperature 1,194 K (921 °C)
Distance from Earth 3,426.99 light-years
Earth Similarity Index 0.236
Travel time at Voyager 1 speed 60,434,900 years

Kepler-1893 b Planet Profile

Physical Specs

Radius

1.71 R⊕

Radius (Jupiter)

0.152 R♃

Mass

3.55 M⊕

Mass (Jupiter)

0.011 M♃

Density

3.93 g/cm³

Surface Gravity

1.22 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.236

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

#399of 1176

top 33.8%

This planet

1.71R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

TOI-836 b 1.70 R⊕ K2-265 b 1.71 R⊕ Kepler-1167 b 1.71 R⊕

Metric	Earth	Kepler-1893 b	Jupiter
Radius (R⊕)	1.00	1.71	11.21
Mass (M⊕)	1.00	3.55	317.83
Density (g/cm³)	5.51	3.93	1.33
Surface Gravity (g)	1.00	1.22	2.53
Insolation (S⊕)	1.00	478.98	0.037

Star Catalogue Identifiers

TIC

TIC 274022334

Gaia DR2

Gaia DR2 2079299809530106496

Gaia DR3

Gaia DR3 2079299809530106496

System

Kepler-1893

Percentile among Super-Earth cohort

Radius 1.706 R⊕ · percentile 66 / cohort 1176

Mass 3.550 M⊕ · percentile 60 / cohort 1176

Orbital period 4.18 d · percentile 33 / cohort 1164

Distance 1,050.72 pc · percentile 83 / cohort 1171

ESI 0.236 · percentile 20 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.179 days

Semi-major axis

0.0504 AU

Eccentricity

0.000

Inclination

88.44 °

Year Length

A year here lasts approximately 4.18 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0504 AU.

Transit Fingerprint

Depth

0.017 %

Duration

2.647 h

Impact parameter b

0.317

Rp / R★

0.012013

Transit midpoint (BJD)

2,454,966.8469

Photometric dip

Transit produces a flux drop of 173 ppm lasting ≈ 2.65 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012013

Semi-major axis / stellar radius

11.610

Impact parameter (b)

0.317

Transit mid-time (BJD)

2,454,966.8469

Angular separation (arcsec)

0.04800

Eq. Temperature

1,194K

(921 °C)

Insolation (S⊕)

478.98

Earth = 1.00

Earth Similarity (ESI)

0.236

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-1893

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,633 K — cooler than the Sun (5,778 K)

Estimated Age

13.90 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.162 R☉

Stellar Mass

0.973 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.296 dex

Stellar density

1.695 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,050.72 parsec

Light-years 3,426.99 ly

V-band magnitude

15.15 mag

Voyager-speed travel 60,434,900 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.924 mas

Total Proper Motion

9.833 mas/yr

PM Right Ascension

-9.49 mas/yr

PM Declination

-2.58 mas/yr

Galactic Cartesian (pc)

x = 0.337 · y = -0.624 · z = 0.705

Equatorial (J2000)

RA 298.40129° · Dec 44.83817°

Galactic ℓ, b

79.203° · 8.767°

Ecliptic λ, β

319.131° · 63.513°

HTM-20 index

1261737413