Confirmed Exoplanet Discovered 2016

Kepler-1476 b

A super-earth orbiting the g-type yellow (sun-like) Kepler-1476, located approximately 3,270.5 light-years from Earth.

Key parameters at a glance

  • A radius of 1.67 Earth radii
  • A mass of 3.43 Earth masses
  • Surface gravity around 1.23 g
  • An orbital period of 10.359 days
  • Semi-major axis 0.0932 AU
  • Equilibrium temperature 860 K (587 °C)
  • Distance from Earth 3,270.50 light-years
  • Earth Similarity Index 0.339
  • Travel time at Voyager 1 speed 57,675,206 years

Kepler-1476 b Planet Profile

Physical Specs

Radius
1.67 R⊕
Radius (Jupiter)
0.149 R♃
Mass
3.43 M⊕
Mass (Jupiter)
0.011 M♃
Density
4.05 g/cm³
Surface Gravity
1.23 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.339
HZ Position Inner
Controversial No

Discovery

Year 2016
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#452of 1176

top 38.4%

This planet

1.67R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1476 b Jupiter
Radius (R⊕)1.001.6711.21
Mass (M⊕)1.003.43317.83
Density (g/cm³)5.514.051.33
Surface Gravity (g)1.001.232.53
Insolation (S⊕)1.0075.640.037

Star Catalogue Identifiers

TIC

TIC 164727404

Gaia DR2

Gaia DR2 2106597487787652352

Gaia DR3

Gaia DR3 2106597487787652352

System

Kepler-1476

Percentile among Super-Earth cohort

Radius 1.670 R⊕ · percentile 61 / cohort 1176
Mass 3.430 M⊕ · percentile 55 / cohort 1176
Orbital period 10.36 d · percentile 66 / cohort 1164
Distance 1,002.74 pc · percentile 81 / cohort 1171
ESI 0.339 · percentile 48 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
10.359 days
Semi-major axis
0.0932 AU
Eccentricity
0.000
Inclination
89.86 °

Year Length

A year here lasts approximately 10.36 Earth days (2.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0932 AU.

Transit Fingerprint

Depth

0.027 %

Duration

2.574 h

Impact parameter b

0.065

Rp / R★

0.016144

Transit midpoint (BJD)

2,454,971.3038

Photometric dip

Transit produces a flux drop of 274 ppm lasting ≈ 2.57 h.

Extended Orbital Architecture

Planet / star radius ratio

0.016144

Semi-major axis / stellar radius

31.090

Impact parameter (b)

0.065

Transit mid-time (BJD)

2,454,971.3038

Angular separation (arcsec)

0.09290

Eq. Temperature

860K

(587 °C)

Insolation (S⊕)

75.64

Earth = 1.00

Earth Similarity (ESI)

0.339

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

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-1476

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,663 K — cooler than the Sun (5,778 K)

Estimated Age

4.57 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.960 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.470 dex

Stellar density

5.342 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,002.74 parsec
Light-years 3,270.50 ly
V-band magnitude
15.57 mag
Voyager-speed travel 57,675,206 yr

Multi-band Host Photometry — 16 bands

9.316.416.41B15.57V15.41Gaia15.41Kepler14.91TESS15.93Sloan g15.37Sloan r15.19Sloan i15.13Sloan z14.23J13.90H13.83K13.65W113.66W213.07W39.30W4

Astrometric Data

Parallax

0.969 mas

Total Proper Motion

9.078 mas/yr

PM Right Ascension

-4.68 mas/yr

PM Declination

-7.78 mas/yr

Galactic Cartesian (pc)

x = 0.181 · y = -0.696 · z = 0.695

Equatorial (J2000)

RA 284.53207° · Dec 43.98990°

Galactic ℓ, b

74.047° · 17.338°

Ecliptic λ, β

296.457° · 66.099°

HTM-20 index

1062809956

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