Confirmed Exoplanet Discovered 2016

Kepler-930 b

A sub-neptune orbiting the f-type yellow-white Kepler-930, located approximately 2,767.1 light-years from Earth.

Key parameters at a glance

  • A radius of 2.13 Earth radii
  • A mass of 5.18 Earth masses
  • Surface gravity around 1.14 g
  • An orbital period of 71.452 days
  • Semi-major axis 0.3459 AU
  • Equilibrium temperature 561 K (288 °C)
  • Distance from Earth 2,767.09 light-years
  • Earth Similarity Index 0.475
  • Travel time at Voyager 1 speed 48,797,708 years

Kepler-930 b Planet Profile

Physical Specs

Radius
2.13 R⊕
Radius (Jupiter)
0.190 R♃
Mass
5.18 M⊕
Mass (Jupiter)
0.016 M♃
Density
2.95 g/cm³
Surface Gravity
1.14 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.475
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

#1765of 1978

top 89.2%

This planet

2.13R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-930 b Jupiter
Radius (R⊕)1.002.1311.21
Mass (M⊕)1.005.18317.83
Density (g/cm³)5.512.951.33
Surface Gravity (g)1.001.142.53
Insolation (S⊕)1.0016.850.037

Star Catalogue Identifiers

TIC

TIC 274031725

Gaia DR2

Gaia DR2 2078446691589261696

Gaia DR3

Gaia DR3 2078446691589261696

System

Kepler-930

Percentile among Sub-Neptune cohort

Radius 2.130 R⊕ · percentile 10 / cohort 1978
Mass 5.180 M⊕ · percentile 11 / cohort 1978
Orbital period 71.45 d · percentile 91 / cohort 1946
Distance 848.40 pc · percentile 69 / cohort 1975
ESI 0.475 · percentile 67 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
71.452 days
Semi-major axis
0.3459 AU
Eccentricity
0.000
Inclination
89.99 °

Year Length

A year here lasts approximately 71.45 Earth days (19.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3459 AU.

Transit Fingerprint

Depth

0.022 %

Duration

6.024 h

Impact parameter b

0.088

Rp / R★

0.014165

Transit midpoint (BJD)

2,454,981.8132

Photometric dip

Transit produces a flux drop of 217 ppm lasting ≈ 6.02 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014165

Semi-major axis / stellar radius

88.140

Impact parameter (b)

0.088

Transit mid-time (BJD)

2,454,981.8132

Angular separation (arcsec)

0.40800

Eq. Temperature

561K

(288 °C)

Insolation (S⊕)

16.85

Earth = 1.00

Earth Similarity (ESI)

0.475

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-930

Spectral Class

F-type yellow-white

Effective Temperature

6,335 K — hotter than the Sun (5,778 K)

Estimated Age

2.34 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.400 R☉

Stellar Mass

1.250 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.240 dex

Stellar density

0.460 g/cm³

Metallicity ratio

[Fe/H]

Distance
848.40 parsec
Light-years 2,767.09 ly
V-band magnitude
13.89 mag
Voyager-speed travel 48,797,708 yr

Multi-band Host Photometry — 16 bands

9.115.315.31B13.89V13.76Gaia13.78Kepler13.30TESS14.25Sloan g13.75Sloan r13.58Sloan i13.52Sloan z12.64J12.35H12.26K12.22W112.26W211.54W39.11W4

Astrometric Data

Parallax

1.150 mas

Total Proper Motion

15.190 mas/yr

PM Right Ascension

3.70 mas/yr

PM Declination

-14.73 mas/yr

Galactic Cartesian (pc)

x = 0.351 · y = -0.652 · z = 0.672

Equatorial (J2000)

RA 298.31445° · Dec 42.24737°

Galactic ℓ, b

76.903° · 7.528°

Ecliptic λ, β

316.731° · 61.173°

HTM-20 index

-185431833

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