Confirmed Exoplanet Discovered 2021

Kepler-1767 b

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-1767, located approximately 2,676.1 light-years from Earth.

Key parameters at a glance

  • A radius of 3.01 Earth radii
  • A mass of 9.34 Earth masses
  • Surface gravity around 1.03 g
  • An orbital period of 59.658 days
  • Semi-major axis 0.2873 AU
  • Equilibrium temperature 393 K (120 °C)
  • Distance from Earth 2,676.13 light-years
  • Earth Similarity Index 0.566
  • Travel time at Voyager 1 speed 47,193,542 years

Kepler-1767 b Planet Profile

Physical Specs

Radius
3.01 R⊕
Radius (Jupiter)
0.269 R♃
Mass
9.34 M⊕
Mass (Jupiter)
0.029 M♃
Density
1.88 g/cm³
Surface Gravity
1.03 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.566
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

#508of 1978

top 25.6%

This planet

3.01R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-1767 b Jupiter
Radius (R⊕)1.003.0111.21
Mass (M⊕)1.009.34317.83
Density (g/cm³)5.511.881.33
Surface Gravity (g)1.001.032.53
Insolation (S⊕)1.005.660.037

Star Catalogue Identifiers

TIC

TIC 270619473

Gaia DR2

Gaia DR2 2128221376815734528

Gaia DR3

Gaia DR3 2128221376815734528

System

Kepler-1767

Percentile among Sub-Neptune cohort

Radius 3.013 R⊕ · percentile 74 / cohort 1978
Mass 9.340 M⊕ · percentile 68 / cohort 1978
Orbital period 59.66 d · percentile 88 / cohort 1946
Distance 820.51 pc · percentile 66 / cohort 1975
ESI 0.566 · percentile 78 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
59.658 days
Semi-major axis
0.2873 AU
Eccentricity
0.000
Inclination
88.38 °

Year Length

A year here lasts approximately 59.66 Earth days (16.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2873 AU.

Transit Fingerprint

Depth

0.104 %

Duration

5.239 h

Impact parameter b

0.932

Rp / R★

0.038251

Transit midpoint (BJD)

2,455,001.0876

Photometric dip

Transit produces a flux drop of 1,044 ppm lasting ≈ 5.24 h.

Extended Orbital Architecture

Planet / star radius ratio

0.038251

Semi-major axis / stellar radius

33.800

Impact parameter (b)

0.932

Transit mid-time (BJD)

2,455,001.0876

Angular separation (arcsec)

0.35000

Eq. Temperature

393K

(120 °C)

Insolation (S⊕)

5.66

Earth = 1.00

Earth Similarity (ESI)

0.566

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Transit timing variations

Gravitational interactions from neighbours have been detected.

Discovery Paper

Primary reference

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Host System: Kepler-1767

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,243 K — cooler than the Sun (5,778 K)

Estimated Age

0.60 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.831 R☉

Stellar Mass

0.887 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.547 dex

Stellar density

0.206 g/cm³

Metallicity ratio

[Fe/H]

Distance
820.51 parsec
Light-years 2,676.13 ly
V-band magnitude
16.21 mag
Voyager-speed travel 47,193,542 yr

Multi-band Host Photometry — 16 bands

9.516.516.51B16.21V15.72Gaia15.74Kepler15.16TESS16.35Sloan g15.69Sloan r15.48Sloan i15.34Sloan z14.40J13.89H13.79K13.84W113.92W213.31W39.48W4

Astrometric Data

Parallax

1.191 mas

Total Proper Motion

17.430 mas/yr

PM Right Ascension

-3.95 mas/yr

PM Declination

-16.98 mas/yr

Galactic Cartesian (pc)

x = 0.274 · y = -0.625 · z = 0.731

Equatorial (J2000)

RA 293.64412° · Dec 46.98967°

Galactic ℓ, b

79.548° · 12.699°

Ecliptic λ, β

314.082° · 66.846°

HTM-20 index

-1328566121

Similar Worlds

Explore Related Categories