Confirmed Exoplanet Discovered 2016

Kepler-793 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-793, located approximately 3,214.9 light-years from Earth.

Key parameters at a glance

  • A radius of 1.37 Earth radii
  • A mass of 2.45 Earth masses
  • Surface gravity around 1.31 g
  • An orbital period of 4.242 days
  • Semi-major axis 0.0491 AU
  • Equilibrium temperature 1,177 K (904 °C)
  • Distance from Earth 3,214.92 light-years
  • Earth Similarity Index 0.257
  • Travel time at Voyager 1 speed 56,695,048 years

Kepler-793 b Planet Profile

Physical Specs

Radius
1.37 R⊕
Radius (Jupiter)
0.122 R♃
Mass
2.45 M⊕
Mass (Jupiter)
0.008 M♃
Density
5.24 g/cm³
Surface Gravity
1.31 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.257
HZ Position Inner
Controversial No

Discovery

Year 2016
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#966of 1176

top 82.1%

This planet

1.37R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-793 b Jupiter
Radius (R⊕)1.001.3711.21
Mass (M⊕)1.002.45317.83
Density (g/cm³)5.515.241.33
Surface Gravity (g)1.001.312.53
Insolation (S⊕)1.00617.410.037

Star Catalogue Identifiers

TIC

TIC 139036121

Gaia DR2

Gaia DR2 2052144621107902208

Gaia DR3

Gaia DR3 2052144621107902208

System

Kepler-793

Percentile among Super-Earth cohort

Radius 1.370 R⊕ · percentile 17 / cohort 1176
Mass 2.450 M⊕ · percentile 17 / cohort 1176
Orbital period 4.24 d · percentile 34 / cohort 1164
Distance 985.70 pc · percentile 80 / cohort 1171
ESI 0.257 · percentile 25 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
4.242 days
Semi-major axis
0.0491 AU
Eccentricity
0.000
Inclination
88.62 °

Year Length

A year here lasts approximately 4.24 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0491 AU.

Transit Fingerprint

Depth

0.019 %

Duration

3.115 h

Impact parameter b

0.257

Rp / R★

0.013228

Transit midpoint (BJD)

2,454,966.4581

Photometric dip

Transit produces a flux drop of 188 ppm lasting ≈ 3.12 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013228

Semi-major axis / stellar radius

10.700

Impact parameter (b)

0.257

Transit mid-time (BJD)

2,454,966.4581

Angular separation (arcsec)

0.04980

Eq. Temperature

1,177K

(904 °C)

Insolation (S⊕)

617.41

Earth = 1.00

Earth Similarity (ESI)

0.257

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-793

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,745 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.970 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

4.460 dex

Stellar density

0.959 g/cm³

Metallicity ratio

[Fe/H]

Distance
985.70 parsec
Light-years 3,214.92 ly
V-band magnitude
14.74 mag
Voyager-speed travel 56,695,048 yr

Multi-band Host Photometry — 16 bands

9.115.515.52B14.74V14.60Gaia14.62Kepler14.09TESS15.17Sloan g14.57Sloan r14.39Sloan i14.26Sloan z13.35J13.00H12.87K12.83W112.83W212.45W39.08W4

Astrometric Data

Parallax

0.988 mas

Total Proper Motion

24.215 mas/yr

PM Right Ascension

16.84 mas/yr

PM Declination

17.40 mas/yr

Galactic Cartesian (pc)

x = 0.332 · y = -0.705 · z = 0.626

Equatorial (J2000)

RA 295.21673° · Dec 38.77443°

Galactic ℓ, b

72.685° · 7.879°

Ecliptic λ, β

309.842° · 58.775°

HTM-20 index

-1890170188

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