Key parameters at a glance

A radius of 0.60 Earth radii
A mass of 0.16 Earth masses
Surface gravity around 0.43 g
An orbital period of 9.328 days
Semi-major axis 0.0831 AU
Equilibrium temperature 788 K (515 °C)
Distance from Earth 1,317.45 light-years
Earth Similarity Index 0.357
Travel time at Voyager 1 speed 23,233,260 years

Kepler-1583 b Planet Profile

Physical Specs

Radius

0.60 R⊕

Radius (Jupiter)

0.054 R♃

Mass

0.16 M⊕

Mass (Jupiter)

0.000 M♃

Density

3.97 g/cm³

Surface Gravity

0.43 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.357

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

#550of 570

top 96.3%

This planet

0.60R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1998 b 0.60 R⊕ Kepler-963 c 0.60 R⊕ KOI-1843.03 0.61 R⊕

Metric	Earth	Kepler-1583 b	Jupiter
Radius (R⊕)	1.00	0.60	11.21
Mass (M⊕)	1.00	0.16	317.83
Density (g/cm³)	5.51	3.97	1.33
Surface Gravity (g)	1.00	0.43	2.53
Insolation (S⊕)	1.00	124.31	0.037

Star Catalogue Identifiers

TIC

TIC 158270841

Gaia DR2

Gaia DR2 2130695518492411904

Gaia DR3

Gaia DR3 2130695518492411904

System

Kepler-1583

Percentile among Rocky Terrestrial cohort

Radius 0.600 R⊕ · percentile 3 / cohort 570

Mass 0.156 M⊕ · percentile 2 / cohort 570

Orbital period 9.33 d · percentile 77 / cohort 567

Distance 403.93 pc · percentile 53 / cohort 566

ESI 0.357 · percentile 52 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

9.328 days

Semi-major axis

0.0831 AU

Eccentricity

0.000

Inclination

89.86 °

Year Length

A year here lasts approximately 9.33 Earth days (2.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0831 AU.

Transit Fingerprint

Depth

0.005 %

Duration

3.936 h

Impact parameter b

0.044

Rp / R★

0.005899

Transit midpoint (BJD)

2,454,965.8532

Photometric dip

Transit produces a flux drop of 45 ppm lasting ≈ 3.94 h.

Extended Orbital Architecture

Planet / star radius ratio

0.005899

Semi-major axis / stellar radius

17.960

Impact parameter (b)

0.044

Transit mid-time (BJD)

2,454,965.8532

Angular separation (arcsec)

0.20600

Eq. Temperature

788K

(515 °C)

Insolation (S⊕)

124.31

Earth = 1.00

Earth Similarity (ESI)

0.357

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-1583

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,645 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.910 R☉

Stellar Mass

0.940 M☉

Metallicity [Fe/H]

-0.07

Extended Stellar Properties

Surface gravity (log g)

4.490 dex

Stellar density

0.780 g/cm³

Systemic radial velocity

-76.09 km/s

Metallicity ratio

[Fe/H]

Distance

403.93 parsec

Light-years 1,317.45 ly

V-band magnitude

12.98 mag

Voyager-speed travel 23,233,260 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.447 mas

Total Proper Motion

24.598 mas/yr

PM Right Ascension

2.24 mas/yr

PM Declination

-24.50 mas/yr

Galactic Cartesian (pc)

x = 0.192 · y = -0.654 · z = 0.732

Equatorial (J2000)

RA 286.38693° · Dec 47.01652°

Galactic ℓ, b

77.495° · 17.232°

Ecliptic λ, β

301.887° · 68.649°

HTM-20 index

-1804450367