Key parameters at a glance

A radius of 15.13 Earth radii
An orbital period of 3.004 days
Semi-major axis 0.0439 AU
Equilibrium temperature 1,438 K (1165 °C)
Distance from Earth 5,693.93 light-years
Earth Similarity Index 0.026
Travel time at Voyager 1 speed 100,412,513 years

Kepler-493 b Planet Profile

Physical Specs

Radius

15.13 R⊕

Radius (Jupiter)

1.350 R♃

Mass

— M⊕

Mass (Jupiter)

— M♃

Density

— g/cm³

Surface Gravity

— g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.026

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

#224of 1771

top 12.6%

This planet

15.13R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

WASP-108 b 15.13 R⊕ KELT-11 b 15.13 R⊕ WASP-123 b 15.13 R⊕

Metric	Earth	Kepler-493 b	Jupiter
Radius (R⊕)	1.00	15.13	11.21
Mass (M⊕)	1.00	—	317.83
Density (g/cm³)	5.51	—	1.33
Surface Gravity (g)	1.00	—	2.53
Insolation (S⊕)	1.00	1,414.33	0.037

Star Catalogue Identifiers

TIC

TIC 139104940

Gaia DR2

Gaia DR2 2076166029596100224

Gaia DR3

Gaia DR3 2076166029596100224

System

Kepler-493

Percentile among Gas Giant cohort

Radius 15.130 R⊕ · percentile 87 / cohort 1771

Orbital period 3.00 d · percentile 16 / cohort 1533

Distance 1,745.77 pc · percentile 90 / cohort 1759

ESI 0.026 · percentile 0 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

3.004 days

Semi-major axis

0.0439 AU

Eccentricity

0.000

Inclination

87.33 °

Year Length

A year here lasts approximately 3.00 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0439 AU.

Transit Fingerprint

Depth

0.953 %

Duration

3.259 h

Impact parameter b

0.057

Rp / R★

0.089620

Transit midpoint (BJD)

2,454,967.7113

Photometric dip

Transit produces a flux drop of 9,532 ppm lasting ≈ 3.26 h.

Extended Orbital Architecture

Planet / star radius ratio

0.089620

Semi-major axis / stellar radius

3.814

Impact parameter (b)

0.057

Transit mid-time (BJD)

2,454,967.7113

Angular separation (arcsec)

0.02510

Eq. Temperature

1,438K

(1165 °C)

Insolation (S⊕)

1,414.33

Earth = 1.00

Earth Similarity (ESI)

0.026

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

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-493

Spectral Class

F-type yellow-white

Effective Temperature

6,457 K — hotter than the Sun (5,778 K)

Estimated Age

2.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.540 R☉

Stellar Mass

1.360 M☉

Metallicity [Fe/H]

0.11

Extended Stellar Properties

Surface gravity (log g)

4.190 dex

Stellar density

0.953 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,745.77 parsec

Light-years 5,693.93 ly

V-band magnitude

15.27 mag

Voyager-speed travel 100,412,513 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.545 mas

Total Proper Motion

18.302 mas/yr

PM Right Ascension

-5.82 mas/yr

PM Declination

-17.35 mas/yr

Galactic Cartesian (pc)

x = 0.333 · y = -0.704 · z = 0.628

Equatorial (J2000)

RA 295.30753° · Dec 38.88157°

Galactic ℓ, b

72.814° · 7.868°

Ecliptic λ, β

310.039° · 58.853°

HTM-20 index

-1933454560