Confirmed Exoplanet Discovered 2016

Kepler-933 b

A sub-neptune orbiting the g-type yellow (sun-like) Kepler-933, located approximately 3,317.7 light-years from Earth.

Key parameters at a glance

  • A radius of 2.46 Earth radii
  • A mass of 6.62 Earth masses
  • Surface gravity around 1.09 g
  • An orbital period of 14.204 days
  • Semi-major axis 0.1041 AU
  • Equilibrium temperature 602 K (329 °C)
  • Distance from Earth 3,317.66 light-years
  • Earth Similarity Index 0.421
  • Travel time at Voyager 1 speed 58,506,910 years

Kepler-933 b Planet Profile

Physical Specs

Radius
2.46 R⊕
Radius (Jupiter)
0.219 R♃
Mass
6.62 M⊕
Mass (Jupiter)
0.021 M♃
Density
2.44 g/cm³
Surface Gravity
1.09 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.421
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

#1245of 1978

top 62.9%

This planet

2.46R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Metric Earth Kepler-933 b Jupiter
Radius (R⊕)1.002.4611.21
Mass (M⊕)1.006.62317.83
Density (g/cm³)5.512.441.33
Surface Gravity (g)1.001.092.53
Insolation (S⊕)1.0061.320.037

Star Catalogue Identifiers

TIC

TIC 159099716

Gaia DR2

Gaia DR2 2102865436087077632

Gaia DR3

Gaia DR3 2102865436087077632

System

Kepler-933

Percentile among Sub-Neptune cohort

Radius 2.460 R⊕ · percentile 37 / cohort 1978
Mass 6.620 M⊕ · percentile 35 / cohort 1978
Orbital period 14.20 d · percentile 49 / cohort 1946
Distance 1,017.20 pc · percentile 79 / cohort 1975
ESI 0.421 · percentile 57 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period
14.204 days
Semi-major axis
0.1041 AU
Eccentricity
0.000
Inclination
89.98 °

Year Length

A year here lasts approximately 14.20 Earth days (3.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1041 AU.

Transit Fingerprint

Depth

0.080 %

Duration

3.979 h

Impact parameter b

0.011

Rp / R★

0.026872

Transit midpoint (BJD)

2,454,975.7334

Photometric dip

Transit produces a flux drop of 801 ppm lasting ≈ 3.98 h.

Extended Orbital Architecture

Planet / star radius ratio

0.026872

Semi-major axis / stellar radius

28.560

Impact parameter (b)

0.011

Transit mid-time (BJD)

2,454,975.7334

Angular separation (arcsec)

0.10200

Eq. Temperature

602K

(329 °C)

Insolation (S⊕)

61.32

Earth = 1.00

Earth Similarity (ESI)

0.421

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-933

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,346 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.840 R☉

Stellar Mass

0.870 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.540 dex

Stellar density

2.020 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,017.20 parsec
Light-years 3,317.66 ly
V-band magnitude
15.61 mag
Voyager-speed travel 58,506,910 yr

Multi-band Host Photometry — 16 bands

9.116.616.56B15.61V15.44Gaia15.47Kepler14.89TESS16.08Sloan g15.43Sloan r15.21Sloan i15.09Sloan z14.10J13.72H13.58K13.63W113.77W213.14W39.13W4

Astrometric Data

Parallax

0.955 mas

Total Proper Motion

18.863 mas/yr

PM Right Ascension

-14.31 mas/yr

PM Declination

-12.29 mas/yr

Galactic Cartesian (pc)

x = 0.243 · y = -0.683 · z = 0.689

Equatorial (J2000)

RA 289.56853° · Dec 43.53854°

Galactic ℓ, b

75.083° · 13.811°

Ecliptic λ, β

304.542° · 64.649°

HTM-20 index

903329321

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