Key parameters at a glance

A radius of 0.81 Earth radii
A mass of 0.46 Earth masses
Surface gravity around 0.70 g
An orbital period of 5.176 days
Semi-major axis 0.0586 AU
Equilibrium temperature 1,243 K (970 °C)
Distance from Earth 2,962.94 light-years
Earth Similarity Index 0.240
Travel time at Voyager 1 speed 52,251,525 years

Kepler-1611 b Planet Profile

Physical Specs

Radius

0.81 R⊕

Radius (Jupiter)

0.072 R♃

Mass

0.46 M⊕

Mass (Jupiter)

0.001 M♃

Density

4.73 g/cm³

Surface Gravity

0.70 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.240

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

#474of 570

top 83.0%

This planet

0.81R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-388 b 0.81 R⊕ Kepler-220 b 0.81 R⊕ Kepler-352 d 0.81 R⊕

Metric	Earth	Kepler-1611 b	Jupiter
Radius (R⊕)	1.00	0.81	11.21
Mass (M⊕)	1.00	0.46	317.83
Density (g/cm³)	5.51	4.73	1.33
Surface Gravity (g)	1.00	0.70	2.53
Insolation (S⊕)	1.00	146.22	0.037

Star Catalogue Identifiers

TIC

TIC 27846759

Gaia DR2

Gaia DR2 2134894690840101376

Gaia DR3

Gaia DR3 2134894690840101376

System

Kepler-1611

Percentile among Rocky Terrestrial cohort

Radius 0.810 R⊕ · percentile 16 / cohort 570

Mass 0.457 M⊕ · percentile 14 / cohort 570

Orbital period 5.18 d · percentile 55 / cohort 567

Distance 908.44 pc · percentile 91 / cohort 566

ESI 0.240 · percentile 24 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

5.176 days

Semi-major axis

0.0586 AU

Eccentricity

0.000

Inclination

89.26 °

Year Length

A year here lasts approximately 5.18 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0586 AU.

Transit Fingerprint

Depth

0.008 %

Duration

5.150 h

Impact parameter b

0.218

Rp / R★

0.008447

Transit midpoint (BJD)

2,454,966.7437

Photometric dip

Transit produces a flux drop of 79 ppm lasting ≈ 5.15 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008447

Semi-major axis / stellar radius

7.564

Impact parameter (b)

0.218

Transit mid-time (BJD)

2,454,966.7437

Angular separation (arcsec)

0.06450

Eq. Temperature

1,243K

(970 °C)

Insolation (S⊕)

146.22

Earth = 1.00

Earth Similarity (ESI)

0.240

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-1611

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,605 K — cooler than the Sun (5,778 K)

Estimated Age

5.01 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.930 R☉

Stellar Mass

0.940 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.490 dex

Stellar density

0.306 g/cm³

Metallicity ratio

[Fe/H]

Distance

908.44 parsec

Light-years 2,962.94 ly

V-band magnitude

14.63 mag

Voyager-speed travel 52,251,525 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.037 mas

Total Proper Motion

11.578 mas/yr

PM Right Ascension

11.37 mas/yr

PM Declination

2.20 mas/yr

Galactic Cartesian (pc)

x = 0.289 · y = -0.578 · z = 0.763

Equatorial (J2000)

RA 296.51202° · Dec 49.72775°

Galactic ℓ, b

82.932° · 12.246°

Ecliptic λ, β

321.778° · 68.452°

HTM-20 index

-453123834