Confirmed Exoplanet Discovered 2021

Kepler-1967 b

A rocky terrestrial orbiting the k-type orange Kepler-1967, located approximately 812.5 light-years from Earth.

Key parameters at a glance

  • A radius of 0.73 Earth radii
  • A mass of 0.32 Earth masses
  • Surface gravity around 0.59 g
  • An orbital period of 7.282 days
  • Semi-major axis 0.0669 AU
  • Equilibrium temperature 1,086 K (813 °C)
  • Distance from Earth 812.46 light-years
  • Earth Similarity Index 0.270
  • Travel time at Voyager 1 speed 14,327,751 years
  • Almost certainly tidally locked to its host star given the close orbit

Kepler-1967 b Planet Profile

Physical Specs

Radius
0.73 R⊕
Radius (Jupiter)
0.065 R♃
Mass
0.32 M⊕
Mass (Jupiter)
0.001 M♃
Density
4.45 g/cm³
Surface Gravity
0.59 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.270
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

#517of 570

top 90.5%

This planet

0.73R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Metric Earth Kepler-1967 b Jupiter
Radius (R⊕)1.000.7311.21
Mass (M⊕)1.000.32317.83
Density (g/cm³)5.514.451.33
Surface Gravity (g)1.000.592.53
Insolation (S⊕)1.0057.100.037

Star Catalogue Identifiers

TIC

TIC 268604336

Gaia DR2

Gaia DR2 2075973718142345472

Gaia DR3

Gaia DR3 2075973718142345472

System

Kepler-1967

Percentile among Rocky Terrestrial cohort

Radius 0.730 R⊕ · percentile 9 / cohort 570
Mass 0.315 M⊕ · percentile 7 / cohort 570
Orbital period 7.28 d · percentile 69 / cohort 567
Distance 249.10 pc · percentile 34 / cohort 566
ESI 0.270 · percentile 29 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period
7.282 days
Semi-major axis
0.0669 AU
Eccentricity
0.000
Inclination
84.96 °

Year Length

A year here lasts approximately 7.28 Earth days (2.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0669 AU.

Transit Fingerprint

Depth

0.011 %

Duration

1.723 h

Impact parameter b

0.100

Rp / R★

0.009401

Transit midpoint (BJD)

2,454,970.3009

Photometric dip

Transit produces a flux drop of 112 ppm lasting ≈ 1.72 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009401

Semi-major axis / stellar radius

10.880

Impact parameter (b)

0.100

Transit mid-time (BJD)

2,454,970.3009

Angular separation (arcsec)

0.26800

Eq. Temperature

1,086K

(813 °C)

Insolation (S⊕)

57.10

Earth = 1.00

Earth Similarity (ESI)

0.270

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Host System: Kepler-1967

Spectral Class

K-type orange

Effective Temperature

4,970 K — cooler than the Sun (5,778 K)

Estimated Age

6.92 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.806 R☉

Stellar Mass

0.996 M☉

Metallicity [Fe/H]

0.32

Extended Stellar Properties

Surface gravity (log g)

3.924 dex

Stellar density

0.460 g/cm³

Metallicity ratio

[Fe/H]

Distance
249.10 parsec
Light-years 812.46 ly
V-band magnitude
13.52 mag
Voyager-speed travel 14,327,751 yr

Multi-band Host Photometry — 16 bands

8.314.814.80B13.52V13.38Gaia13.37Kepler12.73TESS14.21Sloan g13.30Sloan r13.01Sloan i12.86Sloan z11.83J11.28H11.19K11.10W111.16W210.85W38.26W4

Astrometric Data

Parallax

3.986 mas

Total Proper Motion

47.896 mas/yr

PM Right Ascension

-26.24 mas/yr

PM Declination

-40.07 mas/yr

Galactic Cartesian (pc)

x = 0.353 · y = -0.634 · z = 0.688

Equatorial (J2000)

RA 299.13763° · Dec 43.49847°

Galactic ℓ, b

78.300° · 7.638°

Ecliptic λ, β

318.952° · 62.075°

HTM-20 index

1826249278

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