Confirmed Exoplanet Discovered 2014

Kepler-179 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-179, located approximately 1,975.5 light-years from Earth.

Key parameters at a glance

  • A radius of 1.64 Earth radii
  • A mass of 3.33 Earth masses
  • Surface gravity around 1.24 g
  • An orbital period of 2.736 days
  • Semi-major axis 0.0360 AU
  • Equilibrium temperature 1,075 K (802 °C)
  • Distance from Earth 1,975.46 light-years
  • Earth Similarity Index 0.268
  • Travel time at Voyager 1 speed 34,837,264 years

1 sibling around Kepler-179

Kepler-179 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-179 b this Super-Earth 1.64 3.33 2.736 1,075 2014
Kepler-179 c Sub-Neptune 2.00 4.66 6.400 810 2014

Kepler-179 b Planet Profile

Physical Specs

Radius
1.64 R⊕
Radius (Jupiter)
0.146 R♃
Mass
3.33 M⊕
Mass (Jupiter)
0.011 M♃
Density
4.15 g/cm³
Surface Gravity
1.24 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.268
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

#495of 1176

top 42.0%

This planet

1.64R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-179 b Jupiter
Radius (R⊕)1.001.6411.21
Mass (M⊕)1.003.33317.83
Density (g/cm³)5.514.151.33
Surface Gravity (g)1.001.242.53
Insolation (S⊕)1.00360.260.037

Star Catalogue Identifiers

TIC

TIC 268057162

Gaia DR2

Gaia DR2 2086468453545432960

Gaia DR3

Gaia DR3 2086468453545432960

System

Kepler-179

Percentile among Super-Earth cohort

Radius 1.640 R⊕ · percentile 56 / cohort 1176
Mass 3.330 M⊕ · percentile 51 / cohort 1176
Orbital period 2.74 d · percentile 19 / cohort 1164
Distance 605.68 pc · percentile 55 / cohort 1171
ESI 0.268 · percentile 29 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
2.736 days
Semi-major axis
0.0360 AU
Eccentricity
0.000
Inclination
89.00 °

Year Length

A year here lasts approximately 2.74 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0360 AU.

Transit Fingerprint

Depth

0.043 %

Duration

1.987 h

Impact parameter b

0.570

Rp / R★

0.018704

Transit midpoint (BJD)

2,455,004.0938

Photometric dip

Transit produces a flux drop of 429 ppm lasting ≈ 1.99 h.

Extended Orbital Architecture

Planet / star radius ratio

0.018704

Semi-major axis / stellar radius

10.778

Impact parameter (b)

0.570

Transit mid-time (BJD)

2,455,004.0938

Angular separation (arcsec)

0.05940

Eq. Temperature

1,075K

(802 °C)

Insolation (S⊕)

360.26

Earth = 1.00

Earth Similarity (ESI)

0.268

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-179

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,302 K — cooler than the Sun (5,778 K)

Estimated Age

1.74 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.759 R☉

Stellar Mass

0.893 M☉

Metallicity [Fe/H]

0.12

Extended Stellar Properties

Surface gravity (log g)

4.613 dex

Stellar density

1.640 g/cm³

Systemic radial velocity

-32.82 km/s

Rotational v·sin i

3.00 km/s

Metallicity ratio

[Fe/H]

Distance
605.68 parsec
Light-years 1,975.46 ly
V-band magnitude
14.77 mag
Voyager-speed travel 34,837,264 yr

Multi-band Host Photometry — 16 bands

9.315.715.66B14.77V14.60Gaia14.61Kepler14.04TESS15.24Sloan g14.56Sloan r14.34Sloan i14.25Sloan z13.28J12.87H12.75K12.73W112.77W213.25W39.31W4

Astrometric Data

Parallax

1.622 mas

Total Proper Motion

26.554 mas/yr

PM Right Ascension

-18.50 mas/yr

PM Declination

-19.05 mas/yr

Galactic Cartesian (pc)

x = 0.322 · y = -0.590 · z = 0.740

Equatorial (J2000)

RA 298.66362° · Dec 47.76193°

Galactic ℓ, b

81.868° · 10.059°

Ecliptic λ, β

322.580° · 66.048°

HTM-20 index

147371196

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