Key parameters at a glance

A radius of 2.38 Earth radii
A mass of 6.26 Earth masses
Surface gravity around 1.11 g
An orbital period of 6.180 days
Semi-major axis 0.0629 AU
Equilibrium temperature 814 K (541 °C)
Distance from Earth 3,399.43 light-years
Earth Similarity Index 0.317
Travel time at Voyager 1 speed 59,948,877 years

Kepler-1071 b Planet Profile

Physical Specs

Radius

2.38 R⊕

Radius (Jupiter)

0.212 R♃

Mass

6.26 M⊕

Mass (Jupiter)

0.020 M♃

Density

2.55 g/cm³

Surface Gravity

1.11 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.317

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

#1365of 1978

top 69.0%

This planet

2.38R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-166 c 2.38 R⊕ Kepler-189 c 2.38 R⊕ Kepler-1249 b 2.38 R⊕

Metric	Earth	Kepler-1071 b	Jupiter
Radius (R⊕)	1.00	2.38	11.21
Mass (M⊕)	1.00	6.26	317.83
Density (g/cm³)	5.51	2.55	1.33
Surface Gravity (g)	1.00	1.11	2.53
Insolation (S⊕)	1.00	45.12	0.037

Star Catalogue Identifiers

TIC

TIC 275490723

Gaia DR2

Gaia DR2 2126514556811478144

Gaia DR3

Gaia DR3 2126514556811478144

System

Kepler-1071

Percentile among Sub-Neptune cohort

Radius 2.380 R⊕ · percentile 31 / cohort 1978

Mass 6.260 M⊕ · percentile 29 / cohort 1978

Orbital period 6.18 d · percentile 18 / cohort 1946

Distance 1,042.27 pc · percentile 81 / cohort 1975

ESI 0.317 · percentile 32 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

6.180 days

Semi-major axis

0.0629 AU

Eccentricity

0.000

Inclination

89.56 °

Year Length

A year here lasts approximately 6.18 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0629 AU.

Transit Fingerprint

Depth

0.081 %

Duration

2.106 h

Impact parameter b

0.010

Rp / R★

0.027295

Transit midpoint (BJD)

2,454,965.7224

Photometric dip

Transit produces a flux drop of 811 ppm lasting ≈ 2.11 h.

Extended Orbital Architecture

Planet / star radius ratio

0.027295

Semi-major axis / stellar radius

22.600

Impact parameter (b)

0.010

Transit mid-time (BJD)

2,454,965.7224

Angular separation (arcsec)

0.06030

Eq. Temperature

814K

(541 °C)

Insolation (S⊕)

45.12

Earth = 1.00

Earth Similarity (ESI)

0.317

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

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-1071

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,215 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.810 R☉

Stellar Mass

0.860 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

1.370 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,042.27 parsec

Light-years 3,399.43 ly

V-band magnitude

15.88 mag

Voyager-speed travel 59,948,877 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.932 mas

Total Proper Motion

9.916 mas/yr

PM Right Ascension

-2.53 mas/yr

PM Declination

-9.59 mas/yr

Galactic Cartesian (pc)

x = 0.276 · y = -0.648 · z = 0.710

Equatorial (J2000)

RA 293.05798° · Dec 45.24875°

Galactic ℓ, b

77.765° · 12.291°

Ecliptic λ, β

311.480° · 65.401°

HTM-20 index

-1584754680