Confirmed Exoplanet Discovered 2016

Kepler-1612 b

A rocky terrestrial orbiting the g-type yellow (sun-like) Kepler-1612, located approximately 2,494.2 light-years from Earth.

Key parameters at a glance

  • A radius of 1.03 Earth radii
  • A mass of 1.08 Earth masses
  • Surface gravity around 1.02 g
  • An orbital period of 3.918 days
  • Semi-major axis 0.0482 AU
  • Equilibrium temperature 1,030 K (757 °C)
  • Distance from Earth 2,494.20 light-years
  • Earth Similarity Index 0.313
  • Travel time at Voyager 1 speed 43,985,210 years

Kepler-1612 b Planet Profile

Physical Specs

Radius
1.03 R⊕
Radius (Jupiter)
0.092 R♃
Mass
1.08 M⊕
Mass (Jupiter)
0.003 M♃
Density
5.43 g/cm³
Surface Gravity
1.02 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.313
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

#297of 570

top 51.9%

This planet

1.03R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Metric Earth Kepler-1612 b Jupiter
Radius (R⊕)1.001.0311.21
Mass (M⊕)1.001.08317.83
Density (g/cm³)5.515.431.33
Surface Gravity (g)1.001.022.53
Insolation (S⊕)1.00269.250.037

Star Catalogue Identifiers

TIC

TIC 159646633

Gaia DR2

Gaia DR2 2127432099262972416

Gaia DR3

Gaia DR3 2127432099262972416

System

Kepler-1612

Percentile among Rocky Terrestrial cohort

Radius 1.030 R⊕ · percentile 46 / cohort 570
Mass 1.080 M⊕ · percentile 41 / cohort 570
Orbital period 3.92 d · percentile 43 / cohort 567
Distance 764.73 pc · percentile 83 / cohort 566
ESI 0.313 · percentile 43 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period
3.918 days
Semi-major axis
0.0482 AU
Eccentricity
0.000
Inclination
88.27 °

Year Length

A year here lasts approximately 3.92 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0482 AU.

Transit Fingerprint

Depth

0.012 %

Duration

2.586 h

Impact parameter b

0.384

Rp / R★

0.009888

Transit midpoint (BJD)

2,454,965.8641

Photometric dip

Transit produces a flux drop of 117 ppm lasting ≈ 2.59 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009888

Semi-major axis / stellar radius

10.830

Impact parameter (b)

0.384

Transit mid-time (BJD)

2,454,965.8641

Angular separation (arcsec)

0.06300

Eq. Temperature

1,030K

(757 °C)

Insolation (S⊕)

269.25

Earth = 1.00

Earth Similarity (ESI)

0.313

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

Host System: Kepler-1612

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,643 K — cooler than the Sun (5,778 K)

Estimated Age

4.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.940 R☉

Stellar Mass

0.960 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.480 dex

Stellar density

1.730 g/cm³

Metallicity ratio

[Fe/H]

Distance
764.73 parsec
Light-years 2,494.20 ly
V-band magnitude
14.94 mag
Voyager-speed travel 43,985,210 yr

Multi-band Host Photometry — 16 bands

9.115.815.82B14.94V14.72Gaia14.75Kepler14.21TESS15.29Sloan g14.68Sloan r14.52Sloan i14.43Sloan z13.50J13.14H13.08K13.05W113.09W212.69W39.10W4

Astrometric Data

Parallax

1.279 mas

Total Proper Motion

6.291 mas/yr

PM Right Ascension

3.91 mas/yr

PM Declination

-4.93 mas/yr

Galactic Cartesian (pc)

x = 0.253 · y = -0.651 · z = 0.715

Equatorial (J2000)

RA 291.25030° · Dec 45.65505°

Galactic ℓ, b

77.577° · 13.610°

Ecliptic λ, β

308.962° · 66.243°

HTM-20 index

1580814321

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