Confirmed Exoplanet Discovered 2021

Kepler-534 c

A rocky terrestrial orbiting the g-type yellow (sun-like) Kepler-534, located approximately 1,861.2 light-years from Earth.

Key parameters at a glance

  • A radius of 1.23 Earth radii
  • A mass of 2.02 Earth masses
  • Surface gravity around 1.34 g
  • An orbital period of 7.379 days
  • Semi-major axis 0.0761 AU
  • Equilibrium temperature 933 K (660 °C)
  • Distance from Earth 1,861.24 light-years
  • Earth Similarity Index 0.333
  • Travel time at Voyager 1 speed 32,822,940 years

1 sibling around Kepler-534

Kepler-534 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-534 c this Rocky Terrestrial 1.23 2.02 7.379 933 2021
Kepler-534 b Sub-Neptune 2.24 5.65 15.960 721 2016

Kepler-534 c Planet Profile

Physical Specs

Radius
1.23 R⊕
Radius (Jupiter)
0.109 R♃
Mass
2.02 M⊕
Mass (Jupiter)
0.006 M♃
Density
6.01 g/cm³
Surface Gravity
1.34 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.333
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

#34of 570

top 5.8%

This planet

1.23R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Metric Earth Kepler-534 c Jupiter
Radius (R⊕)1.001.2311.21
Mass (M⊕)1.002.02317.83
Density (g/cm³)5.516.011.33
Surface Gravity (g)1.001.342.53
Insolation (S⊕)1.00178.680.037

Star Catalogue Identifiers

TIC

TIC 27847148

Gaia DR2

Gaia DR2 2134886100904948608

Gaia DR3

Gaia DR3 2134886100904948608

System

Kepler-534

Percentile among Rocky Terrestrial cohort

Radius 1.227 R⊕ · percentile 94 / cohort 570
Mass 2.020 M⊕ · percentile 86 / cohort 570
Orbital period 7.38 d · percentile 69 / cohort 567
Distance 570.66 pc · percentile 70 / cohort 566
ESI 0.333 · percentile 47 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period
7.379 days
Semi-major axis
0.0761 AU
Eccentricity
0.000
Inclination
88.00 °

Year Length

A year here lasts approximately 7.38 Earth days (2.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0761 AU.

Transit Fingerprint

Depth

0.012 %

Duration

3.207 h

Impact parameter b

0.520

Rp / R★

0.010098

Transit midpoint (BJD)

2,454,968.8196

Photometric dip

Transit produces a flux drop of 118 ppm lasting ≈ 3.21 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010098

Semi-major axis / stellar radius

16.010

Impact parameter (b)

0.520

Transit mid-time (BJD)

2,454,968.8196

Angular separation (arcsec)

0.13300

Eq. Temperature

933K

(660 °C)

Insolation (S⊕)

178.68

Earth = 1.00

Earth Similarity (ESI)

0.333

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-534

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,936 K — hotter than the Sun (5,778 K)

Estimated Age

1.58 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.965 R☉

Stellar Mass

1.075 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.501 dex

Stellar density

1.097 g/cm³

Metallicity ratio

[Fe/H]

Distance
570.66 parsec
Light-years 1,861.24 ly
V-band magnitude
13.39 mag
Voyager-speed travel 32,822,940 yr

Multi-band Host Photometry — 16 bands

9.113.913.87B13.39V13.23Gaia13.24Kepler12.79TESS13.65Sloan g13.22Sloan r13.06Sloan i13.00Sloan z12.06J11.78H11.71K11.13W111.22W211.32W39.09W4

Astrometric Data

Parallax

1.724 mas

Total Proper Motion

11.905 mas/yr

PM Right Ascension

1.62 mas/yr

PM Declination

11.79 mas/yr

Galactic Cartesian (pc)

x = 0.289 · y = -0.581 · z = 0.761

Equatorial (J2000)

RA 296.41857° · Dec 49.54015°

Galactic ℓ, b

82.734° · 12.213°

Ecliptic λ, β

321.389° · 68.317°

HTM-20 index

1751508857

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