Key parameters at a glance

A radius of 1.08 Earth radii
A mass of 1.28 Earth masses
Surface gravity around 1.10 g
An orbital period of 85.757 days
Semi-major axis 0.3657 AU
Equilibrium temperature 528 K (255 °C)
Distance from Earth 1,781.56 light-years
Earth Similarity Index 0.606
Travel time at Voyager 1 speed 31,417,843 years

Kepler-1605 b Planet Profile

Physical Specs

Radius

1.08 R⊕

Radius (Jupiter)

0.096 R♃

Mass

1.28 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.58 g/cm³

Surface Gravity

1.10 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.606

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

#253of 570

top 44.2%

This planet

1.08R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

K2-72 b 1.08 R⊕ Wolf 1069 b 1.08 R⊕ TOI-6255 b 1.08 R⊕

Metric	Earth	Kepler-1605 b	Jupiter
Radius (R⊕)	1.00	1.08	11.21
Mass (M⊕)	1.00	1.28	317.83
Density (g/cm³)	5.51	5.58	1.33
Surface Gravity (g)	1.00	1.10	2.53
Insolation (S⊕)	1.00	16.73	0.037

Star Catalogue Identifiers

TIC

TIC 158394902

Gaia DR2

Gaia DR2 2130676478898097792

Gaia DR3

Gaia DR3 2130676478898097792

System

Kepler-1605

Percentile among Rocky Terrestrial cohort

Radius 1.080 R⊕ · percentile 55 / cohort 570

Mass 1.280 M⊕ · percentile 50 / cohort 570

Orbital period 85.76 d · percentile 99 / cohort 567

Distance 546.23 pc · percentile 68 / cohort 566

ESI 0.606 · percentile 79 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

85.757 days

Semi-major axis

0.3657 AU

Eccentricity

0.000

Inclination

89.51 °

Year Length

A year here lasts approximately 85.76 Earth days (23.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3657 AU.

Transit Fingerprint

Depth

0.017 %

Duration

5.802 h

Impact parameter b

0.405

Rp / R★

0.011847

Transit midpoint (BJD)

2,454,995.7187

Photometric dip

Transit produces a flux drop of 165 ppm lasting ≈ 5.80 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011847

Semi-major axis / stellar radius

82.600

Impact parameter (b)

0.405

Transit mid-time (BJD)

2,454,995.7187

Angular separation (arcsec)

0.66900

Eq. Temperature

528K

(255 °C)

Insolation (S⊕)

16.73

Earth = 1.00

Earth Similarity (ESI)

0.606

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-1605

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,280 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.820 R☉

Stellar Mass

0.860 M☉

Metallicity [Fe/H]

-0.01

Extended Stellar Properties

Surface gravity (log g)

4.550 dex

Stellar density

0.110 g/cm³

Systemic radial velocity

-41.69 km/s

Metallicity ratio

[Fe/H]

Distance

546.23 parsec

Light-years 1,781.56 ly

V-band magnitude

12.59 mag

Voyager-speed travel 31,417,843 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.802 mas

Total Proper Motion

6.190 mas/yr

PM Right Ascension

6.10 mas/yr

PM Declination

-1.03 mas/yr

Galactic Cartesian (pc)

x = 0.199 · y = -0.646 · z = 0.737

Equatorial (J2000)

RA 287.13494° · Dec 47.48863°

Galactic ℓ, b

78.151° · 16.935°

Ecliptic λ, β

303.632° · 68.936°

HTM-20 index

-1777946941