Confirmed Exoplanet Discovered 2014

Kepler-363 c

A super-earth orbiting the g-type yellow (sun-like) Kepler-363, located approximately 2,487.3 light-years from Earth.

Key parameters at a glance

  • A radius of 1.69 Earth radii
  • A mass of 66.40 Earth masses
  • Surface gravity around 23.25 g
  • An orbital period of 7.542 days
  • Semi-major axis 0.0790 AU
  • Equilibrium temperature 1,054 K (781 °C)
  • Distance from Earth 2,487.25 light-years
  • Earth Similarity Index 0.138
  • Travel time at Voyager 1 speed 43,862,697 years

2 siblings around Kepler-363

Kepler-363 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-363 b Rocky Terrestrial 1.16 1.65 3.615 1,347 2014
Kepler-363 c this Super-Earth 1.69 66.40 7.542 1,054 2014
Kepler-363 d Sub-Neptune 2.05 4.86 11.932 905 2014

Kepler-363 c Planet Profile

Physical Specs

Radius
1.69 R⊕
Radius (Jupiter)
0.151 R♃
Mass
66.40 M⊕
Mass (Jupiter)
0.209 M♃
Density
75.60 g/cm³
Surface Gravity
23.25 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.138
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

#415of 1176

top 35.2%

This planet

1.69R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-363 c Jupiter
Radius (R⊕)1.001.6911.21
Mass (M⊕)1.0066.40317.83
Density (g/cm³)5.5175.601.33
Surface Gravity (g)1.0023.252.53
Insolation (S⊕)1.00376.290.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 66.400 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 258349590

Gaia DR2

Gaia DR2 2104466153215402624

Gaia DR3

Gaia DR3 2104466153215402624

System

Kepler-363

Percentile among Super-Earth cohort

Radius 1.690 R⊕ · percentile 64 / cohort 1176
Mass 66.400 M⊕ · percentile 99 / cohort 1176
Orbital period 7.54 d · percentile 55 / cohort 1164
Distance 762.60 pc · percentile 64 / cohort 1171
ESI 0.138 · percentile 3 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
7.542 days
Semi-major axis
0.0790 AU
Eccentricity
0.000
Inclination
88.44 °

Year Length

A year here lasts approximately 7.54 Earth days (2.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0790 AU.

Transit Fingerprint

Depth

0.013 %

Duration

4.900 h

Impact parameter b

0.100

Rp / R★

0.010500

Transit midpoint (BJD)

2,454,965.9542

Photometric dip

Transit produces a flux drop of 133 ppm lasting ≈ 4.90 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010500

Semi-major axis / stellar radius

8.300

Impact parameter (b)

0.100

Transit mid-time (BJD)

2,454,965.9542

Angular separation (arcsec)

0.10400

Eq. Temperature

1,054K

(781 °C)

Insolation (S⊕)

376.29

Earth = 1.00

Earth Similarity (ESI)

0.138

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Host System: Kepler-363

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,593 K — cooler than the Sun (5,778 K)

Estimated Age

5.50 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.485 R☉

Stellar Mass

1.226 M☉

Metallicity [Fe/H]

0.40

Extended Stellar Properties

Surface gravity (log g)

4.152 dex

Stellar density

0.310 g/cm³

Metallicity ratio

[M/H]

Distance
762.60 parsec
Light-years 2,487.25 ly
V-band magnitude
13.47 mag
Voyager-speed travel 43,862,697 yr

Multi-band Host Photometry — 17 bands

9.215.915.90U14.38B13.47V13.32Gaia13.35Kepler12.80TESS15.88Sloan g13.38Sloan r13.23Sloan i13.44Sloan z12.11J11.76H11.70K11.66W111.70W211.65W39.19W4

Astrometric Data

Parallax

1.282 mas

Total Proper Motion

12.967 mas/yr

PM Right Ascension

-4.94 mas/yr

PM Declination

11.99 mas/yr

Galactic Cartesian (pc)

x = 0.171 · y = -0.731 · z = 0.660

Equatorial (J2000)

RA 283.19208° · Dec 41.30542°

Galactic ℓ, b

71.053° · 17.284°

Ecliptic λ, β

292.764° · 63.706°

HTM-20 index

-840326670

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