Key parameters at a glance

A radius of 1.52 Earth radii
A mass of 2.92 Earth masses
Surface gravity around 1.26 g
An orbital period of 6.241 days
Semi-major axis 0.0643 AU
Equilibrium temperature 1,111 K (838 °C)
Distance from Earth 2,319.94 light-years
Earth Similarity Index 0.265
Travel time at Voyager 1 speed 40,912,102 years

Kepler-886 b Planet Profile

Physical Specs

Radius

1.52 R⊕

Radius (Jupiter)

0.136 R♃

Mass

2.92 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.57 g/cm³

Surface Gravity

1.26 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.265

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

#707of 1176

top 60.0%

This planet

1.52R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-65 d 1.52 R⊕ Kepler-348 b 1.52 R⊕ Kepler-306 b 1.52 R⊕

Metric	Earth	Kepler-886 b	Jupiter
Radius (R⊕)	1.00	1.52	11.21
Mass (M⊕)	1.00	2.92	317.83
Density (g/cm³)	5.51	4.57	1.33
Surface Gravity (g)	1.00	1.26	2.53
Insolation (S⊕)	1.00	231.43	0.037

Star Catalogue Identifiers

TIC

TIC 158215023

Gaia DR2

Gaia DR2 2105673726221976576

Gaia DR3

Gaia DR3 2105673726221976576

System

Kepler-886

Percentile among Super-Earth cohort

Radius 1.520 R⊕ · percentile 39 / cohort 1176

Mass 2.920 M⊕ · percentile 36 / cohort 1176

Orbital period 6.24 d · percentile 49 / cohort 1164

Distance 711.30 pc · percentile 61 / cohort 1171

ESI 0.265 · percentile 28 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

6.241 days

Semi-major axis

0.0643 AU

Eccentricity

0.000

Inclination

89.89 °

Year Length

A year here lasts approximately 6.24 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0643 AU.

Transit Fingerprint

Depth

0.016 %

Duration

3.077 h

Impact parameter b

0.915

Rp / R★

0.012032

Transit midpoint (BJD)

2,454,967.8870

Photometric dip

Transit produces a flux drop of 164 ppm lasting ≈ 3.08 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012032

Semi-major axis / stellar radius

15.566

Impact parameter (b)

0.915

Transit mid-time (BJD)

2,454,967.8870

Angular separation (arcsec)

0.09040

Eq. Temperature

1,111K

(838 °C)

Insolation (S⊕)

231.43

Earth = 1.00

Earth Similarity (ESI)

0.265

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-886

Spectral Class

F-type yellow-white

Effective Temperature

6,098 K — hotter than the Sun (5,778 K)

Estimated Age

3.39 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.160 R☉

Stellar Mass

1.100 M☉

Metallicity [Fe/H]

-0.01

Extended Stellar Properties

Surface gravity (log g)

4.350 dex

Stellar density

0.980 g/cm³

Metallicity ratio

[Fe/H]

Distance

711.30 parsec

Light-years 2,319.94 ly

V-band magnitude

14.05 mag

Voyager-speed travel 40,912,102 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.377 mas

Total Proper Motion

2.642 mas/yr

PM Right Ascension

-1.28 mas/yr

PM Declination

2.31 mas/yr

Galactic Cartesian (pc)

x = 0.203 · y = -0.695 · z = 0.690

Equatorial (J2000)

RA 286.27172° · Dec 43.59520°

Galactic ℓ, b

74.153° · 16.025°

Ecliptic λ, β

299.165° · 65.395°

HTM-20 index

46480636