Confirmed Exoplanet Discovered 2021

Kepler-1950 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-1950, located approximately 2,274.1 light-years from Earth.

Key parameters at a glance

  • A radius of 1.53 Earth radii
  • A mass of 2.95 Earth masses
  • Surface gravity around 1.27 g
  • An orbital period of 10.777 days
  • Semi-major axis 0.0871 AU
  • Equilibrium temperature 752 K (479 °C)
  • Distance from Earth 2,274.13 light-years
  • Earth Similarity Index 0.400
  • Travel time at Voyager 1 speed 40,104,324 years

Kepler-1950 b Planet Profile

Physical Specs

Radius
1.53 R⊕
Radius (Jupiter)
0.136 R♃
Mass
2.95 M⊕
Mass (Jupiter)
0.009 M♃
Density
4.55 g/cm³
Surface Gravity
1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.400
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

#704of 1176

top 59.8%

This planet

1.53R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1950 b Jupiter
Radius (R⊕)1.001.5311.21
Mass (M⊕)1.002.95317.83
Density (g/cm³)5.514.551.33
Surface Gravity (g)1.001.272.53
Insolation (S⊕)1.0075.830.037

Star Catalogue Identifiers

TIC

TIC 158388625

Gaia DR2

Gaia DR2 2105573945541164544

Gaia DR3

Gaia DR3 2105573945541164544

System

Kepler-1950

Percentile among Super-Earth cohort

Radius 1.527 R⊕ · percentile 40 / cohort 1176
Mass 2.950 M⊕ · percentile 37 / cohort 1176
Orbital period 10.78 d · percentile 67 / cohort 1164
Distance 697.25 pc · percentile 61 / cohort 1171
ESI 0.400 · percentile 60 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
10.777 days
Semi-major axis
0.0871 AU
Eccentricity
0.000
Inclination
89.87 °

Year Length

A year here lasts approximately 10.78 Earth days (3.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0871 AU.

Transit Fingerprint

Depth

0.016 %

Duration

2.616 h

Impact parameter b

0.069

Rp / R★

0.011390

Transit midpoint (BJD)

2,454,973.2902

Photometric dip

Transit produces a flux drop of 158 ppm lasting ≈ 2.62 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011390

Semi-major axis / stellar radius

31.790

Impact parameter (b)

0.069

Transit mid-time (BJD)

2,454,973.2902

Angular separation (arcsec)

0.12500

Eq. Temperature

752K

(479 °C)

Insolation (S⊕)

75.83

Earth = 1.00

Earth Similarity (ESI)

0.400

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-1950

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,455 K — cooler than the Sun (5,778 K)

Estimated Age

Stellar Radius

0.852 R☉

Stellar Mass

0.759 M☉

Metallicity [Fe/H]

-0.34

Extended Stellar Properties

Surface gravity (log g)

4.457 dex

Stellar density

5.233 g/cm³

Metallicity ratio

[Fe/H]

Distance
697.25 parsec
Light-years 2,274.13 ly
V-band magnitude
14.85 mag
Voyager-speed travel 40,104,324 yr

Multi-band Host Photometry — 16 bands

8.915.215.13B14.85V14.56Gaia14.59Kepler14.01TESS15.19Sloan g14.55Sloan r14.33Sloan i14.22Sloan z13.20J12.84H12.68K12.71W112.75W212.83W38.86W4

Astrometric Data

Parallax

1.406 mas

Total Proper Motion

6.408 mas/yr

PM Right Ascension

-5.34 mas/yr

PM Declination

-3.55 mas/yr

Galactic Cartesian (pc)

x = 0.216 · y = -0.703 · z = 0.678

Equatorial (J2000)

RA 287.08746° · Dec 42.66865°

Galactic ℓ, b

73.506° · 15.118°

Ecliptic λ, β

299.928° · 64.343°

HTM-20 index

-1909993440

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