Key parameters at a glance

A radius of 2.36 Earth radii
A mass of 6.17 Earth masses
Surface gravity around 1.11 g
An orbital period of 60.086 days
Semi-major axis 0.3148 AU
Equilibrium temperature 485 K (212 °C)
Distance from Earth 2,330.18 light-years
Earth Similarity Index 0.521
Travel time at Voyager 1 speed 41,092,707 years

Kepler-983 b Planet Profile

Physical Specs

Radius

2.36 R⊕

Radius (Jupiter)

0.211 R♃

Mass

6.17 M⊕

Mass (Jupiter)

0.019 M♃

Density

2.58 g/cm³

Surface Gravity

1.11 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.521

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

#1395of 1978

top 70.5%

This planet

2.36R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1022 b 2.36 R⊕ Kepler-482 b 2.36 R⊕ Kepler-184 b 2.36 R⊕

Metric	Earth	Kepler-983 b	Jupiter
Radius (R⊕)	1.00	2.36	11.21
Mass (M⊕)	1.00	6.17	317.83
Density (g/cm³)	5.51	2.58	1.33
Surface Gravity (g)	1.00	1.11	2.53
Insolation (S⊕)	1.00	31.00	0.037

Star Catalogue Identifiers

TIC

TIC 164882868

Gaia DR2

Gaia DR2 2106370541711607680

Gaia DR3

Gaia DR3 2106370541711607680

System

Kepler-983

Percentile among Sub-Neptune cohort

Radius 2.360 R⊕ · percentile 29 / cohort 1978

Mass 6.170 M⊕ · percentile 28 / cohort 1978

Orbital period 60.09 d · percentile 89 / cohort 1946

Distance 714.44 pc · percentile 60 / cohort 1975

ESI 0.521 · percentile 73 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

60.086 days

Semi-major axis

0.3148 AU

Eccentricity

0.000

Inclination

88.93 °

Year Length

A year here lasts approximately 60.09 Earth days (16.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3148 AU.

Transit Fingerprint

Depth

0.043 %

Duration

6.929 h

Impact parameter b

0.790

Rp / R★

0.020245

Transit midpoint (BJD)

2,454,986.2549

Photometric dip

Transit produces a flux drop of 432 ppm lasting ≈ 6.93 h.

Extended Orbital Architecture

Planet / star radius ratio

0.020245

Semi-major axis / stellar radius

48.200

Impact parameter (b)

0.790

Transit mid-time (BJD)

2,454,986.2549

Angular separation (arcsec)

0.44100

Eq. Temperature

485K

(212 °C)

Insolation (S⊕)

31.00

Earth = 1.00

Earth Similarity (ESI)

0.521

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

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-983

Spectral Class

F-type yellow-white

Effective Temperature

6,052 K — hotter than the Sun (5,778 K)

Estimated Age

1.41 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.080 R☉

Stellar Mass

1.130 M☉

Metallicity [Fe/H]

0.12

Extended Stellar Properties

Surface gravity (log g)

4.420 dex

Stellar density

0.399 g/cm³

Metallicity ratio

[Fe/H]

Distance

714.44 parsec

Light-years 2,330.18 ly

V-band magnitude

14.11 mag

Voyager-speed travel 41,092,707 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Total Proper Motion

13.307 mas/yr

PM Right Ascension

10.83 mas/yr

PM Declination

-7.73 mas/yr

Galactic Cartesian (pc)

x = 0.184 · y = -0.683 · z = 0.707

Equatorial (J2000)

RA 285.10422° · Dec 45.00807°

Galactic ℓ, b

75.196° · 17.327°

Ecliptic λ, β

298.102° · 66.979°

HTM-20 index

404917335