Key parameters at a glance

A radius of 3.03 Earth radii
A mass of 9.43 Earth masses
Surface gravity around 1.03 g
An orbital period of 6.339 days
Semi-major axis 0.0699 AU
Equilibrium temperature 1,034 K (761 °C)
Distance from Earth 4,193.03 light-years
Earth Similarity Index 0.224
Travel time at Voyager 1 speed 73,944,061 years

Kepler-893 b Planet Profile

Physical Specs

Radius

3.03 R⊕

Radius (Jupiter)

0.270 R♃

Mass

9.43 M⊕

Mass (Jupiter)

0.030 M♃

Density

1.86 g/cm³

Surface Gravity

1.03 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.224

HZ Position Inner

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#491of 1978

top 24.8%

This planet

3.03R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-498 b 3.03 R⊕ Kepler-245 d 3.03 R⊕ Kepler-162 c 3.03 R⊕

Metric	Earth	Kepler-893 b	Jupiter
Radius (R⊕)	1.00	3.03	11.21
Mass (M⊕)	1.00	9.43	317.83
Density (g/cm³)	5.51	1.86	1.33
Surface Gravity (g)	1.00	1.03	2.53
Insolation (S⊕)	1.00	266.27	0.037

Star Catalogue Identifiers

TIC

TIC 164830125

Gaia DR2

Gaia DR2 2105847174181385600

Gaia DR3

Gaia DR3 2105847174181385600

System

Kepler-893

Percentile among Sub-Neptune cohort

Radius 3.030 R⊕ · percentile 75 / cohort 1978

Mass 9.430 M⊕ · percentile 69 / cohort 1978

Orbital period 6.34 d · percentile 19 / cohort 1946

Distance 1,285.59 pc · percentile 88 / cohort 1975

ESI 0.224 · percentile 10 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

6.339 days

Semi-major axis

0.0699 AU

Eccentricity

0.000

Inclination

82.42 °

Year Length

A year here lasts approximately 6.34 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0699 AU.

Transit Fingerprint

Depth

0.072 %

Duration

3.283 h

Impact parameter b

0.894

Rp / R★

0.028401

Transit midpoint (BJD)

2,455,187.8511

Photometric dip

Transit produces a flux drop of 722 ppm lasting ≈ 3.28 h.

Extended Orbital Architecture

Planet / star radius ratio

0.028401

Semi-major axis / stellar radius

7.300

Impact parameter (b)

0.894

Transit mid-time (BJD)

2,455,187.8511

Angular separation (arcsec)

0.05440

Eq. Temperature

1,034K

(761 °C)

Insolation (S⊕)

266.27

Earth = 1.00

Earth Similarity (ESI)

0.224

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-893

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,820 K — hotter than the Sun (5,778 K)

Estimated Age

3.80 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.990 R☉

Stellar Mass

1.000 M☉

Metallicity [Fe/H]

-0.03

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.368 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,285.59 parsec

Light-years 4,193.03 ly

V-band magnitude

15.35 mag

Voyager-speed travel 73,944,061 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.749 mas

Total Proper Motion

5.020 mas/yr

PM Right Ascension

2.42 mas/yr

PM Declination

4.40 mas/yr

Galactic Cartesian (pc)

x = 0.186 · y = -0.696 · z = 0.694

Equatorial (J2000)

RA 284.96306° · Dec 43.91303°

Galactic ℓ, b

74.091° · 17.021°

Ecliptic λ, β

297.149° · 65.948°

HTM-20 index

893017347