Key parameters at a glance

A radius of 2.18 Earth radii
A mass of 5.39 Earth masses
Surface gravity around 1.13 g
An orbital period of 13.735 days
Semi-major axis 0.1010 AU
Equilibrium temperature 634 K (361 °C)
Distance from Earth 2,293.42 light-years
Earth Similarity Index 0.420
Travel time at Voyager 1 speed 40,444,541 years

Kepler-790 b Planet Profile

Physical Specs

Radius

2.18 R⊕

Radius (Jupiter)

0.194 R♃

Mass

5.39 M⊕

Mass (Jupiter)

0.017 M♃

Density

2.86 g/cm³

Surface Gravity

1.13 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.420

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

#1703of 1978

top 86.0%

This planet

2.18R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

GJ 3090 b 2.18 R⊕ Kepler-261 b 2.18 R⊕ Kepler-250 d 2.18 R⊕

Metric	Earth	Kepler-790 b	Jupiter
Radius (R⊕)	1.00	2.18	11.21
Mass (M⊕)	1.00	5.39	317.83
Density (g/cm³)	5.51	2.86	1.33
Surface Gravity (g)	1.00	1.13	2.53
Insolation (S⊕)	1.00	38.27	0.037

Star Catalogue Identifiers

TIC

TIC 121020728

Gaia DR2

Gaia DR2 2100369888287148416

Gaia DR3

Gaia DR3 2100369888287148416

System

Kepler-790

Percentile among Sub-Neptune cohort

Radius 2.180 R⊕ · percentile 13 / cohort 1978

Mass 5.390 M⊕ · percentile 14 / cohort 1978

Orbital period 13.73 d · percentile 47 / cohort 1946

Distance 703.17 pc · percentile 60 / cohort 1975

ESI 0.420 · percentile 57 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

13.735 days

Semi-major axis

0.1010 AU

Eccentricity

0.000

Inclination

86.64 °

Year Length

A year here lasts approximately 13.73 Earth days (3.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1010 AU.

Transit Fingerprint

Depth

0.075 %

Duration

2.357 h

Impact parameter b

0.060

Rp / R★

0.025424

Transit midpoint (BJD)

2,454,975.3309

Photometric dip

Transit produces a flux drop of 746 ppm lasting ≈ 2.36 h.

Extended Orbital Architecture

Planet / star radius ratio

0.025424

Semi-major axis / stellar radius

45.570

Impact parameter (b)

0.060

Transit mid-time (BJD)

2,454,975.3309

Angular separation (arcsec)

0.14400

Eq. Temperature

634K

(361 °C)

Insolation (S⊕)

38.27

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

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-790

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,208 K — cooler than the Sun (5,778 K)

Estimated Age

4.90 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.800 R☉

Stellar Mass

0.840 M☉

Metallicity [Fe/H]

-0.05

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

9.488 g/cm³

Metallicity ratio

[Fe/H]

Distance

703.17 parsec

Light-years 2,293.42 ly

V-band magnitude

15.53 mag

Voyager-speed travel 40,444,541 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

1.394 mas

Total Proper Motion

4.644 mas/yr

PM Right Ascension

4.63 mas/yr

PM Declination

-0.31 mas/yr

Galactic Cartesian (pc)

x = 0.227 · y = -0.745 · z = 0.628

Equatorial (J2000)

RA 286.91715° · Dec 38.87221°

Galactic ℓ, b

69.859° · 13.718°

Ecliptic λ, β

297.574° · 60.702°

HTM-20 index

-788085722