Key parameters at a glance

A radius of 1.48 Earth radii
A mass of 4.66 Earth masses
Surface gravity around 2.13 g
An orbital period of 4.727 days
Semi-major axis 0.0534 AU
Equilibrium temperature 1,133 K (860 °C)
Distance from Earth 312.82 light-years
Earth Similarity Index 0.246
Travel time at Voyager 1 speed 5,516,600 years

1 sibling around Kepler-93

Kepler-93 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-93 b this	Super-Earth	1.48	4.66	4.727	1,133	2014
Kepler-93 c	Unclassified	—	954.00	1,460.000	—	2014

Kepler-93 b Planet Profile

Physical Specs

Radius

1.48 R⊕

Radius (Jupiter)

0.132 R♃

Mass

4.66 M⊕

Mass (Jupiter)

0.015 M♃

Density

7.93 g/cm³

Surface Gravity

2.13 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.246

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#797of 1176

top 67.7%

This planet

1.48R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-208 e 1.48 R⊕ Kepler-123 c 1.48 R⊕ Kepler-1275 b 1.48 R⊕

Metric	Earth	Kepler-93 b	Jupiter
Radius (R⊕)	1.00	1.48	11.21
Mass (M⊕)	1.00	4.66	317.83
Density (g/cm³)	5.51	7.93	1.33
Surface Gravity (g)	1.00	2.13	2.53
Insolation (S⊕)	1.00	275.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	4.660 M⊕	Direct mass measurement (not derived).
Minimum mass (M sin i)	3.601 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 137151335

Gaia DR2

Gaia DR2 2052747119115620352

Gaia DR3

Gaia DR3 2052747119115620352

System

Kepler-93

Percentile among Super-Earth cohort

Radius 1.478 R⊕ · percentile 32 / cohort 1176

Mass 4.660 M⊕ · percentile 92 / cohort 1176

Orbital period 4.73 d · percentile 38 / cohort 1164

Distance 95.91 pc · percentile 16 / cohort 1171

ESI 0.246 · percentile 22 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.727 days

Semi-major axis

0.0534 AU

Eccentricity

0.000

Inclination

89.18 °

Year Length

A year here lasts approximately 4.73 Earth days (1.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0534 AU.

Transit Fingerprint

Depth

0.027 %

Duration

2.890 h

Impact parameter b

0.177

Rp / R★

0.014751

Transit midpoint (BJD)

2,454,944.2923

Photometric dip

Transit produces a flux drop of 273 ppm lasting ≈ 2.89 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014751

Semi-major axis / stellar radius

12.500

Impact parameter (b)

0.177

RV semi-amplitude (K)

1.890 m/s

Transit mid-time (BJD)

2,454,944.2923

Angular separation (arcsec)

0.55700

Eq. Temperature

1,133K

(860 °C)

Insolation (S⊕)

275.00

Earth = 1.00

Earth Similarity (ESI)

0.246

0 = alien, 1 = Earth-identical

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

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Marcy et al. 2014

Instrument

Kepler CCD Array

Publication

2014-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-93

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,669 K — cooler than the Sun (5,778 K)

Estimated Age

6.60 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.919 R☉

Stellar Mass

0.911 M☉

Metallicity [Fe/H]

-0.18

Extended Stellar Properties

Surface gravity (log g)

4.470 dex

Stellar density

1.652 g/cm³

Systemic radial velocity

27.63 km/s

Rotational v·sin i

0.50 km/s

Metallicity ratio

[Fe/H]

Distance

95.91 parsec

Light-years 312.82 ly

V-band magnitude

10.00 mag

Voyager-speed travel 5,516,600 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

10.397 mas

Total Proper Motion

29.265 mas/yr

PM Right Ascension

-28.73 mas/yr

PM Declination

-5.59 mas/yr

Galactic Cartesian (pc)

x = 0.285 · y = -0.727 · z = 0.625

Equatorial (J2000)

RA 291.41813° · Dec 38.67231°

Galactic ℓ, b

71.204° · 10.458°

Ecliptic λ, β

304.274° · 59.589°

HTM-20 index

2107824698

Observation Record

RV measurements

Transmission spectra

Archive notes