Confirmed Exoplanet Discovered 2020

Kepler-1683 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-1683, located approximately 2,391.2 light-years from Earth.

Key parameters at a glance

  • A radius of 1.87 Earth radii
  • A mass of 4.17 Earth masses
  • Surface gravity around 1.19 g
  • An orbital period of 15.034 days
  • Semi-major axis 0.1182 AU
  • Equilibrium temperature 669 K (396 °C)
  • Distance from Earth 2,391.19 light-years
  • Earth Similarity Index 0.420
  • Travel time at Voyager 1 speed 42,168,631 years

Kepler-1683 b Planet Profile

Physical Specs

Radius
1.87 R⊕
Radius (Jupiter)
0.167 R♃
Mass
4.17 M⊕
Mass (Jupiter)
0.013 M♃
Density
3.48 g/cm³
Surface Gravity
1.19 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.420
HZ Position Inner
Controversial No

Discovery

Year 2020
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#167of 1176

top 14.1%

This planet

1.87R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1683 b Jupiter
Radius (R⊕)1.001.8711.21
Mass (M⊕)1.004.17317.83
Density (g/cm³)5.513.481.33
Surface Gravity (g)1.001.192.53
Insolation (S⊕)1.0047.320.037

Star Catalogue Identifiers

TIC

TIC 274126997

Gaia DR2

Gaia DR2 2079071626510258432

Gaia DR3

Gaia DR3 2079071626510258432

System

Kepler-1683

Percentile among Super-Earth cohort

Radius 1.875 R⊕ · percentile 86 / cohort 1176
Mass 4.170 M⊕ · percentile 79 / cohort 1176
Orbital period 15.03 d · percentile 78 / cohort 1164
Distance 733.14 pc · percentile 63 / cohort 1171
ESI 0.420 · percentile 64 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
15.034 days
Semi-major axis
0.1182 AU
Eccentricity
0.000
Inclination
89.98 °

Year Length

A year here lasts approximately 15.03 Earth days (4.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1182 AU.

Transit Fingerprint

Depth

0.037 %

Duration

3.272 h

Impact parameter b

0.010

Rp / R★

0.017431

Transit midpoint (BJD)

2,454,977.9806

Photometric dip

Transit produces a flux drop of 375 ppm lasting ≈ 3.27 h.

Extended Orbital Architecture

Planet / star radius ratio

0.017431

Semi-major axis / stellar radius

35.710

Impact parameter (b)

0.010

Transit mid-time (BJD)

2,454,977.9806

Angular separation (arcsec)

0.16100

Eq. Temperature

669K

(396 °C)

Insolation (S⊕)

47.32

Earth = 1.00

Earth Similarity (ESI)

0.420

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

Armstrong et al. 2021

Instrument

Kepler CCD Array

Publication

2021-07

Observation locale

Space

Host System: Kepler-1683

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,429 K — cooler than the Sun (5,778 K)

Estimated Age

13.60 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.900 R☉

Stellar Mass

0.950 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.507 dex

Stellar density

1.835 g/cm³

Metallicity ratio

[Fe/H]

Distance
733.14 parsec
Light-years 2,391.19 ly
V-band magnitude
14.96 mag
Voyager-speed travel 42,168,631 yr

Multi-band Host Photometry — 16 bands

9.516.316.32B14.96V14.84Gaia14.84Kepler14.28TESS15.48Sloan g14.78Sloan r14.56Sloan i14.45Sloan z13.48J13.10H13.04K12.98W113.08W213.12W39.50W4

Astrometric Data

Parallax

1.336 mas

Total Proper Motion

1.919 mas/yr

PM Right Ascension

0.54 mas/yr

PM Declination

1.84 mas/yr

Galactic Cartesian (pc)

x = 0.341 · y = -0.629 · z = 0.698

Equatorial (J2000)

RA 298.45010° · Dec 44.28402°

Galactic ℓ, b

78.734° · 8.461°

Ecliptic λ, β

318.683° · 62.996°

HTM-20 index

1974107437

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