Confirmed Exoplanet Discovered 2014

Kepler-195 c

A super-earth orbiting the g-type yellow (sun-like) Kepler-195, located approximately 2,126.7 light-years from Earth.

Key parameters at a glance

  • A radius of 1.55 Earth radii
  • A mass of 3.02 Earth masses
  • Surface gravity around 1.26 g
  • An orbital period of 34.097 days
  • Semi-major axis 0.1970 AU
  • Equilibrium temperature 469 K (196 °C)
  • Distance from Earth 2,126.70 light-years
  • Earth Similarity Index 0.621
  • Travel time at Voyager 1 speed 37,504,413 years

1 sibling around Kepler-195

Kepler-195 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-195 b Sub-Neptune 2.03 4.78 8.308 751 2014
Kepler-195 c this Super-Earth 1.55 3.02 34.097 469 2014

Kepler-195 c Planet Profile

Physical Specs

Radius
1.55 R⊕
Radius (Jupiter)
0.138 R♃
Mass
3.02 M⊕
Mass (Jupiter)
0.010 M♃
Density
4.46 g/cm³
Surface Gravity
1.26 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.621
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

#652of 1176

top 55.4%

This planet

1.55R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-195 c Jupiter
Radius (R⊕)1.001.5511.21
Mass (M⊕)1.003.02317.83
Density (g/cm³)5.514.461.33
Surface Gravity (g)1.001.262.53
Insolation (S⊕)1.0011.280.037

Star Catalogue Identifiers

TIC

TIC 298837729

Gaia DR2

Gaia DR2 2130982113070876160

Gaia DR3

Gaia DR3 2130982113070876160

System

Kepler-195

Percentile among Super-Earth cohort

Radius 1.550 R⊕ · percentile 43 / cohort 1176
Mass 3.020 M⊕ · percentile 39 / cohort 1176
Orbital period 34.10 d · percentile 93 / cohort 1164
Distance 652.05 pc · percentile 59 / cohort 1171
ESI 0.621 · percentile 81 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
34.097 days
Semi-major axis
0.1970 AU
Eccentricity
0.000
Inclination
89.65 °

Year Length

A year here lasts approximately 34.10 Earth days (9.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1970 AU.

Transit Fingerprint

Depth

0.047 %

Duration

3.904 h

Impact parameter b

0.290

Rp / R★

0.019891

Transit midpoint (BJD)

2,454,986.8171

Photometric dip

Transit produces a flux drop of 473 ppm lasting ≈ 3.90 h.

Extended Orbital Architecture

Planet / star radius ratio

0.019891

Semi-major axis / stellar radius

24.600

Impact parameter (b)

0.290

Transit mid-time (BJD)

2,454,986.8171

Angular separation (arcsec)

0.30200

Eq. Temperature

469K

(196 °C)

Insolation (S⊕)

11.28

Earth = 1.00

Earth Similarity (ESI)

0.621

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Host System: Kepler-195

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,329 K — cooler than the Sun (5,778 K)

Estimated Age

2.19 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.775 R☉

Stellar Mass

0.867 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.603 dex

Stellar density

1.700 g/cm³

Metallicity ratio

[Fe/H]

Distance
652.05 parsec
Light-years 2,126.70 ly
V-band magnitude
14.86 mag
Voyager-speed travel 37,504,413 yr

Multi-band Host Photometry — 12 bands

13.015.415.25B14.86V14.80Gaia14.81Kepler14.26TESS15.43Sloan g14.75Sloan r14.55Sloan i14.47Sloan z13.53J13.06H12.96K

Astrometric Data

Parallax

1.505 mas

Total Proper Motion

17.479 mas/yr

PM Right Ascension

1.90 mas/yr

PM Declination

-17.37 mas/yr

Galactic Cartesian (pc)

x = 0.208 · y = -0.636 · z = 0.743

Equatorial (J2000)

RA 288.12093° · Dec 47.96661°

Galactic ℓ, b

78.874° · 16.501°

Ecliptic λ, β

305.829° · 69.162°

HTM-20 index

-789195400

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