Confirmed Exoplanet Discovered 2021

Kepler-1067 c

A super-earth orbiting the g-type yellow (sun-like) Kepler-1067, located approximately 2,177.7 light-years from Earth.

Key parameters at a glance

  • A radius of 1.75 Earth radii
  • A mass of 3.70 Earth masses
  • Surface gravity around 1.21 g
  • An orbital period of 5.426 days
  • Semi-major axis 0.0607 AU
  • Equilibrium temperature 973 K (700 °C)
  • Distance from Earth 2,177.72 light-years
  • Earth Similarity Index 0.293
  • Travel time at Voyager 1 speed 38,404,104 years

1 sibling around Kepler-1067

Kepler-1067 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-1067 b Rocky Terrestrial 0.80 0.44 0.762 1,872 2016
Kepler-1067 c this Super-Earth 1.75 3.70 5.426 973 2021

Kepler-1067 c Planet Profile

Physical Specs

Radius
1.75 R⊕
Radius (Jupiter)
0.156 R♃
Mass
3.70 M⊕
Mass (Jupiter)
0.012 M♃
Density
3.81 g/cm³
Surface Gravity
1.21 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.293
HZ Position Inner
Controversial No

Discovery

Year 2021
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#342of 1176

top 29.0%

This planet

1.75R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1067 c Jupiter
Radius (R⊕)1.001.7511.21
Mass (M⊕)1.003.70317.83
Density (g/cm³)5.513.811.33
Surface Gravity (g)1.001.212.53
Insolation (S⊕)1.00190.800.037

Star Catalogue Identifiers

TIC

TIC 351910733

Gaia DR2

Gaia DR2 2106374557504930944

Gaia DR3

Gaia DR3 2106374557504930944

System

Kepler-1067

Percentile among Super-Earth cohort

Radius 1.747 R⊕ · percentile 71 / cohort 1176
Mass 3.700 M⊕ · percentile 64 / cohort 1176
Orbital period 5.43 d · percentile 43 / cohort 1164
Distance 667.69 pc · percentile 59 / cohort 1171
ESI 0.293 · percentile 35 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
5.426 days
Semi-major axis
0.0607 AU
Eccentricity
0.000
Inclination
89.65 °

Year Length

A year here lasts approximately 5.43 Earth days (1.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0607 AU.

Transit Fingerprint

Depth

0.026 %

Duration

2.510 h

Impact parameter b

0.100

Rp / R★

0.014682

Transit midpoint (BJD)

2,454,968.8652

Photometric dip

Transit produces a flux drop of 260 ppm lasting ≈ 2.51 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014682

Semi-major axis / stellar radius

16.520

Impact parameter (b)

0.100

Transit mid-time (BJD)

2,454,968.8652

Angular separation (arcsec)

0.09090

Eq. Temperature

973K

(700 °C)

Insolation (S⊕)

190.80

Earth = 1.00

Earth Similarity (ESI)

0.293

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

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Host System: Kepler-1067

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,594 K — cooler than the Sun (5,778 K)

Estimated Age

0.81 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.934 R☉

Stellar Mass

0.981 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.489 dex

Stellar density

2.899 g/cm³

Metallicity ratio

[Fe/H]

Distance
667.69 parsec
Light-years 2,177.72 ly
V-band magnitude
14.40 mag
Voyager-speed travel 38,404,104 yr

Multi-band Host Photometry — 16 bands

9.315.014.97B14.40V14.27Gaia14.31Kepler13.77TESS14.81Sloan g14.24Sloan r14.09Sloan i14.02Sloan z13.11J12.78H12.66K12.58W112.64W212.53W39.26W4

Astrometric Data

Parallax

1.469 mas

Total Proper Motion

8.958 mas/yr

PM Right Ascension

-6.83 mas/yr

PM Declination

-5.80 mas/yr

Galactic Cartesian (pc)

x = 0.187 · y = -0.681 · z = 0.708

Equatorial (J2000)

RA 285.38737° · Dec 45.04903°

Galactic ℓ, b

75.313° · 17.156°

Ecliptic λ, β

298.623° · 66.965°

HTM-20 index

-2013240590

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