Key parameters at a glance

A radius of 1.50 Earth radii
A mass of 3.83 Earth masses
Surface gravity around 1.71 g
An orbital period of 13.868 days
Semi-major axis 0.1142 AU
Equilibrium temperature 978 K (705 °C)
Distance from Earth 1,721.96 light-years
Earth Similarity Index 0.303
Travel time at Voyager 1 speed 30,366,766 years

1 sibling around Kepler-36

Kepler-36 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-36 b this	Super-Earth	1.50	3.83	13.868	978	2012
Kepler-36 c	Sub-Neptune	3.68	7.13	16.219	928	2012

Kepler-36 b Planet Profile

Physical Specs

Radius

1.50 R⊕

Radius (Jupiter)

0.134 R♃

Mass

3.83 M⊕

Mass (Jupiter)

0.012 M♃

Density

6.26 g/cm³

Surface Gravity

1.71 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.303

HZ Position Inner

Controversial No

Discovery

Year 2012

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#763of 1176

top 64.8%

This planet

1.50R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

TOI-1807 b 1.50 R⊕ Kepler-273 b 1.50 R⊕ Kepler-180 b 1.50 R⊕

Metric	Earth	Kepler-36 b	Jupiter
Radius (R⊕)	1.00	1.50	11.21
Mass (M⊕)	1.00	3.83	317.83
Density (g/cm³)	5.51	6.26	1.33
Surface Gravity (g)	1.00	1.71	2.53
Insolation (S⊕)	1.00	247.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	3.830 M⊕	Direct mass measurement (not derived).
Minimum mass (M sin i)	1.085 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 350810590

Gaia DR2

Gaia DR2 2129931456691176576

Gaia DR3

Gaia DR3 2129931456691176576

System

Kepler-36

Percentile among Super-Earth cohort

Radius 1.498 R⊕ · percentile 35 / cohort 1176

Mass 3.830 M⊕ · percentile 69 / cohort 1176

Orbital period 13.87 d · percentile 75 / cohort 1164

Distance 527.96 pc · percentile 49 / cohort 1171

ESI 0.303 · percentile 37 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

13.868 days

Semi-major axis

0.1142 AU

Eccentricity

0.000

Inclination

90.01 °

Year Length

A year here lasts approximately 13.87 Earth days (3.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1142 AU.

Transit Fingerprint

Depth

0.008 %

Duration

7.278 h

Impact parameter b

0.820

Rp / R★

0.008380

Transit midpoint (BJD)

2,454,974.6491

Photometric dip

Transit produces a flux drop of 85 ppm lasting ≈ 7.28 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008380

Semi-major axis / stellar radius

10.111

Impact parameter (b)

0.820

RV semi-amplitude (K)

0.283 m/s

Transit mid-time (BJD)

2,454,974.6491

Angular separation (arcsec)

0.21600

Eq. Temperature

978K

(705 °C)

Insolation (S⊕)

247.00

Earth = 1.00

Earth Similarity (ESI)

0.303

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Detection Signatures

Transit photometry

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

Transit timing variations

Gravitational interactions from neighbours have been detected.

Discovery Paper

Primary reference

Carter et al. 2012

Instrument

Kepler CCD Array

Publication

2012-08

Observation locale

Space

Discovery cohort

Planets confirmed in 2012 at Kepler (12 shown).

Kepler-54 c · Rocky Terrestrial Kepler-49 c · Sub-Neptune Kepler-55 b · Sub-Neptune Kepler-49 b · Sub-Neptune Kepler-81 c · Sub-Neptune Kepler-55 c · Sub-Neptune Kepler-52 c · Super-Earth Kepler-83 c · Sub-Neptune Kepler-32 d · Sub-Neptune Kepler-83 b · Sub-Neptune Kepler-54 b · Sub-Neptune Kepler-80 c · Sub-Neptune

Host System: Kepler-36

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,979 K — hotter than the Sun (5,778 K)

Estimated Age

7.41 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.634 R☉

Stellar Mass

1.034 M☉

Metallicity [Fe/H]

-0.18

Extended Stellar Properties

Surface gravity (log g)

4.100 dex

Stellar density

0.351 g/cm³

Systemic radial velocity

9.39 km/s

Rotational v·sin i

4.90 km/s

Metallicity ratio

[Fe/H]

Distance

527.96 parsec

Light-years 1,721.96 ly

V-band magnitude

11.94 mag

Voyager-speed travel 30,366,766 yr

Multi-band Host Photometry — 14 bands

Astrometric Data

Parallax

1.865 mas

Total Proper Motion

8.131 mas/yr

PM Right Ascension

0.97 mas/yr

PM Declination

-8.07 mas/yr

Galactic Cartesian (pc)

x = 0.237 · y = -0.609 · z = 0.757

Equatorial (J2000)

RA 291.25019° · Dec 49.23181°

Galactic ℓ, b

80.933° · 15.102°

Ecliptic λ, β

312.625° · 69.545°

HTM-20 index

865136306