Key parameters at a glance

A radius of 2.07 Earth radii
A mass of 4.94 Earth masses
Surface gravity around 1.15 g
An orbital period of 196.435 days
Semi-major axis 0.6421 AU
Equilibrium temperature 324 K (51 °C)
Distance from Earth 2,711.29 light-years
Earth Similarity Index 0.757
Travel time at Voyager 1 speed 47,813,639 years

Kepler-1606 b Planet Profile

Physical Specs

Radius

2.07 R⊕

Radius (Jupiter)

0.185 R♃

Mass

4.94 M⊕

Mass (Jupiter)

0.016 M♃

Density

3.06 g/cm³

Surface Gravity

1.15 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.757

HZ Position Habitable

Controversial No

Discovery

Year 2016

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1860of 1978

top 94.0%

This planet

2.07R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

TOI-262 b 2.07 R⊕ Kepler-654 b 2.07 R⊕ Kepler-988 b 2.07 R⊕

Metric	Earth	Kepler-1606 b	Jupiter
Radius (R⊕)	1.00	2.07	11.21
Mass (M⊕)	1.00	4.94	317.83
Density (g/cm³)	5.51	3.06	1.33
Surface Gravity (g)	1.00	1.15	2.53
Insolation (S⊕)	1.00	1.29	0.037

Star Catalogue Identifiers

TIC

TIC 158218731

Gaia DR2

Gaia DR2 2105554394851020160

Gaia DR3

Gaia DR3 2105554394851020160

System

Kepler-1606

Percentile among Sub-Neptune cohort

Radius 2.070 R⊕ · percentile 6 / cohort 1978

Mass 4.940 M⊕ · percentile 7 / cohort 1978

Orbital period 196.44 d · percentile 98 / cohort 1946

Distance 831.29 pc · percentile 67 / cohort 1975

ESI 0.757 · percentile 97 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

196.435 days

Semi-major axis

0.6421 AU

Eccentricity

0.000

Inclination

89.81 °

Year Length

A year here lasts approximately 196.44 Earth days (53.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.6421 AU.

Transit Fingerprint

Depth

0.063 %

Duration

8.602 h

Impact parameter b

0.480

Rp / R★

0.022241

Transit midpoint (BJD)

2,455,006.7051

Photometric dip

Transit produces a flux drop of 632 ppm lasting ≈ 8.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.022241

Semi-major axis / stellar radius

151.800

Impact parameter (b)

0.480

Transit mid-time (BJD)

2,455,006.7051

Angular separation (arcsec)

0.77200

Eq. Temperature

324K

(51 °C)

Insolation (S⊕)

1.29

Earth = 1.00

Earth Similarity (ESI)

0.757

0 = alien, 1 = Earth-identical

Within the conservative habitable zone — liquid water is physically possible with adequate atmospheric pressure.

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-1606

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,422 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.860 R☉

Stellar Mass

0.900 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

1.190 g/cm³

Metallicity ratio

[Fe/H]

Distance

831.29 parsec

Light-years 2,711.29 ly

V-band magnitude

15.40 mag

Voyager-speed travel 47,813,639 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.175 mas

Total Proper Motion

3.701 mas/yr

PM Right Ascension

3.68 mas/yr

PM Declination

0.37 mas/yr

Galactic Cartesian (pc)

x = 0.206 · y = -0.701 · z = 0.683

Equatorial (J2000)

RA 286.37830° · Dec 43.07323°

Galactic ℓ, b

73.682° · 15.754°

Ecliptic λ, β

299.012° · 64.871°

HTM-20 index

1095400109