Key parameters at a glance

A radius of 1.24 Earth radii
A mass of 2.07 Earth masses
Surface gravity around 1.35 g
An orbital period of 31.201 days
Semi-major axis 0.1720 AU
Equilibrium temperature 406 K (133 °C)
Distance from Earth 1,532.93 light-years
Earth Similarity Index 0.733
Travel time at Voyager 1 speed 27,033,275 years
Almost certainly tidally locked to its host star given the close orbit

1 sibling around Kepler-383

Kepler-383 c 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-383 b	Super-Earth	1.32	2.30	12.905	545	2014
Kepler-383 c this	Rocky Terrestrial	1.24	2.07	31.201	406	2014

Kepler-383 c Planet Profile

Physical Specs

Radius

1.24 R⊕

Radius (Jupiter)

0.111 R♃

Mass

2.07 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.97 g/cm³

Surface Gravity

1.35 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.733

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

#4of 570

top 0.5%

This planet

1.24R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-354 d 1.24 R⊕ Kepler-373 c 1.24 R⊕ Wolf 327 b 1.24 R⊕

Metric	Earth	Kepler-383 c	Jupiter
Radius (R⊕)	1.00	1.24	11.21
Mass (M⊕)	1.00	2.07	317.83
Density (g/cm³)	5.51	5.97	1.33
Surface Gravity (g)	1.00	1.35	2.53
Insolation (S⊕)	1.00	6.44	0.037

Star Catalogue Identifiers

TIC

TIC 137150599

Gaia DR2

Gaia DR2 2052634109935669376

System

Kepler-383

Percentile among Rocky Terrestrial cohort

Radius 1.240 R⊕ · percentile 98 / cohort 570

Mass 2.070 M⊕ · percentile 89 / cohort 570

Orbital period 31.20 d · percentile 97 / cohort 567

Distance 470.00 pc · percentile 61 / cohort 566

ESI 0.733 · percentile 84 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

31.201 days

Semi-major axis

0.1720 AU

Eccentricity

0.000

Inclination

89.04 °

Year Length

A year here lasts approximately 31.20 Earth days (8.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1720 AU.

Transit Fingerprint

Depth

0.036 %

Duration

3.718 h

Impact parameter b

0.360

Rp / R★

0.018145

Transit midpoint (BJD)

2,454,973.0757

Photometric dip

Transit produces a flux drop of 360 ppm lasting ≈ 3.72 h.

Extended Orbital Architecture

Planet / star radius ratio

0.018145

Semi-major axis / stellar radius

42.500

Impact parameter (b)

0.360

Transit mid-time (BJD)

2,454,973.0757

Angular separation (arcsec)

0.36600

Eq. Temperature

406K

(133 °C)

Insolation (S⊕)

6.44

Earth = 1.00

Earth Similarity (ESI)

0.733

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

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-383

Spectral Class

K-type orange

Effective Temperature

4,710 K — cooler than the Sun (5,778 K)

Estimated Age

13.90 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.672 R☉

Stellar Mass

0.669 M☉

Metallicity [Fe/H]

-0.18

Extended Stellar Properties

Surface gravity (log g)

4.624 dex

Stellar density

3.249 g/cm³

Metallicity ratio

[M/H]

Distance

470.00 parsec

Light-years 1,532.93 ly

V-band magnitude

15.47 mag

Voyager-speed travel 27,033,275 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Total Proper Motion

8.788 mas/yr

PM Right Ascension

1.40 mas/yr

PM Declination

8.67 mas/yr

Galactic Cartesian (pc)

x = 0.285 · y = -0.730 · z = 0.621

Equatorial (J2000)

RA 291.34261° · Dec 38.36316°

Galactic ℓ, b

70.896° · 10.373°

Ecliptic λ, β

303.990° · 59.309°

HTM-20 index

2137223657