Confirmed Exoplanet Discovered 2021

Kepler-1913 b

A super-earth orbiting the f-type yellow-white Kepler-1913, located approximately 2,858.1 light-years from Earth.

Key parameters at a glance

  • A radius of 1.52 Earth radii
  • A mass of 2.92 Earth masses
  • Surface gravity around 1.27 g
  • An orbital period of 14.196 days
  • Semi-major axis 0.1209 AU
  • Equilibrium temperature 818 K (545 °C)
  • Distance from Earth 2,858.11 light-years
  • Earth Similarity Index 0.368
  • Travel time at Voyager 1 speed 50,402,679 years

Kepler-1913 b Planet Profile

Physical Specs

Radius
1.52 R⊕
Radius (Jupiter)
0.135 R♃
Mass
2.92 M⊕
Mass (Jupiter)
0.009 M♃
Density
4.58 g/cm³
Surface Gravity
1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.368
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

#724of 1176

top 61.5%

This planet

1.52R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1913 b Jupiter
Radius (R⊕)1.001.5211.21
Mass (M⊕)1.002.92317.83
Density (g/cm³)5.514.581.33
Surface Gravity (g)1.001.272.53
Insolation (S⊕)1.00105.700.037

Star Catalogue Identifiers

TIC

TIC 159304134

Gaia DR2

Gaia DR2 2126997654731597440

Gaia DR3

Gaia DR3 2126997654731597440

System

Kepler-1913

Percentile among Super-Earth cohort

Radius 1.519 R⊕ · percentile 38 / cohort 1176
Mass 2.920 M⊕ · percentile 36 / cohort 1176
Orbital period 14.20 d · percentile 76 / cohort 1164
Distance 876.30 pc · percentile 73 / cohort 1171
ESI 0.368 · percentile 55 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
14.196 days
Semi-major axis
0.1209 AU
Eccentricity
0.000
Inclination
87.66 °

Year Length

A year here lasts approximately 14.20 Earth days (3.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1209 AU.

Transit Fingerprint

Depth

0.020 %

Duration

3.577 h

Impact parameter b

0.203

Rp / R★

0.014804

Transit midpoint (BJD)

2,454,970.0141

Photometric dip

Transit produces a flux drop of 196 ppm lasting ≈ 3.58 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014804

Semi-major axis / stellar radius

30.150

Impact parameter (b)

0.203

Transit mid-time (BJD)

2,454,970.0141

Angular separation (arcsec)

0.13800

Eq. Temperature

818K

(545 °C)

Insolation (S⊕)

105.70

Earth = 1.00

Earth Similarity (ESI)

0.368

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-1913

Spectral Class

F-type yellow-white

Effective Temperature

6,214 K — hotter than the Sun (5,778 K)

Estimated Age

Stellar Radius

1.076 R☉

Stellar Mass

1.169 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.442 dex

Stellar density

0.674 g/cm³

Metallicity ratio

[Fe/H]

Distance
876.30 parsec
Light-years 2,858.11 ly
V-band magnitude
14.81 mag
Voyager-speed travel 50,402,679 yr

Multi-band Host Photometry — 16 bands

9.515.615.59B14.81V14.66Gaia14.71Kepler14.23TESS15.12Sloan g14.65Sloan r14.53Sloan i14.50Sloan z13.60J13.30H13.20K13.22W113.24W212.72W39.50W4

Astrometric Data

Parallax

1.113 mas

Total Proper Motion

15.576 mas/yr

PM Right Ascension

-3.91 mas/yr

PM Declination

-15.08 mas/yr

Galactic Cartesian (pc)

x = 0.245 · y = -0.666 · z = 0.704

Equatorial (J2000)

RA 290.21669° · Dec 44.77959°

Galactic ℓ, b

76.444° · 13.904°

Ecliptic λ, β

306.542° · 65.674°

HTM-20 index

1540318593

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