Confirmed Exoplanet Discovered 2016

Kepler-670 b

A gas giant orbiting the g-type yellow (sun-like) Kepler-670, located approximately 3,065.0 light-years from Earth.

Key parameters at a glance

  • A radius of 13.18 Earth radii
  • An orbital period of 2.817 days
  • Semi-major axis 0.0383 AU
  • Equilibrium temperature 1,219 K (946 °C)
  • Distance from Earth 3,065.03 light-years
  • Earth Similarity Index 0.039
  • Travel time at Voyager 1 speed 54,051,826 years

Kepler-670 b Planet Profile

Physical Specs

Radius
13.18 R⊕
Radius (Jupiter)
1.176 R♃
Mass
M⊕
Mass (Jupiter)
M♃
Density
g/cm³
Surface Gravity
g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.039
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

#899of 1771

top 50.7%

This planet

13.18R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth Kepler-670 b Jupiter
Radius (R⊕)1.0013.1811.21
Mass (M⊕)1.00317.83
Density (g/cm³)5.511.33
Surface Gravity (g)1.002.53
Insolation (S⊕)1.00528.220.037

Star Catalogue Identifiers

TIC

TIC 27990610

Gaia DR2

Gaia DR2 2086830502105850240

Gaia DR3

Gaia DR3 2086830502105850240

System

Kepler-670

Percentile among Gas Giant cohort

Radius 13.180 R⊕ · percentile 49 / cohort 1771
Orbital period 2.82 d · percentile 14 / cohort 1533
Distance 939.74 pc · percentile 86 / cohort 1759
ESI 0.039 · percentile 2 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
2.817 days
Semi-major axis
0.0383 AU
Eccentricity
0.000
Inclination
89.37 °

Year Length

A year here lasts approximately 2.82 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0383 AU.

Transit Fingerprint

Depth

1.681 %

Duration

2.505 h

Impact parameter b

0.007

Rp / R★

0.121703

Transit midpoint (BJD)

2,455,003.9677

Photometric dip

Transit produces a flux drop of 16,814 ppm lasting ≈ 2.51 h.

Extended Orbital Architecture

Planet / star radius ratio

0.121703

Semi-major axis / stellar radius

9.656

Impact parameter (b)

0.007

Transit mid-time (BJD)

2,455,003.9677

Angular separation (arcsec)

0.04080

Eq. Temperature

1,219K

(946 °C)

Insolation (S⊕)

528.22

Earth = 1.00

Earth Similarity (ESI)

0.039

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-670

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,709 K — cooler than the Sun (5,778 K)

Estimated Age

4.79 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.990 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.440 dex

Stellar density

2.147 g/cm³

Metallicity ratio

[Fe/H]

Distance
939.74 parsec
Light-years 3,065.03 ly
V-band magnitude
15.16 mag
Voyager-speed travel 54,051,826 yr

Multi-band Host Photometry — 16 bands

9.316.016.05B15.16V15.03Gaia15.05Kepler14.49TESS15.64Sloan g14.99Sloan r14.80Sloan i14.69Sloan z13.73J13.39H13.32K13.29W113.36W212.55W39.32W4

Astrometric Data

Parallax

1.036 mas

Total Proper Motion

4.550 mas/yr

PM Right Ascension

-2.46 mas/yr

PM Declination

-3.83 mas/yr

Galactic Cartesian (pc)

x = 0.297 · y = -0.582 · z = 0.757

Equatorial (J2000)

RA 297.01546° · Dec 49.22530°

Galactic ℓ, b

82.636° · 11.722°

Ecliptic λ, β

321.899° · 67.855°

HTM-20 index

1889563020

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