Key parameters at a glance

A radius of 1.62 Earth radii
A mass of 3.26 Earth masses
Surface gravity around 1.24 g
An orbital period of 122.364 days
Semi-major axis 0.4823 AU
Equilibrium temperature 407 K (134 °C)
Distance from Earth 4,332.00 light-years
Earth Similarity Index 0.689
Travel time at Voyager 1 speed 76,394,886 years

Kepler-1599 b Planet Profile

Physical Specs

Radius

1.62 R⊕

Radius (Jupiter)

0.145 R♃

Mass

3.26 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.21 g/cm³

Surface Gravity

1.24 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.689

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

#532of 1176

top 45.2%

This planet

1.62R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

TOI-1416 b 1.62 R⊕ K2-58 c 1.62 R⊕ Kepler-1400 b 1.62 R⊕

Metric	Earth	Kepler-1599 b	Jupiter
Radius (R⊕)	1.00	1.62	11.21
Mass (M⊕)	1.00	3.26	317.83
Density (g/cm³)	5.51	4.21	1.33
Surface Gravity (g)	1.00	1.24	2.53
Insolation (S⊕)	1.00	8.20	0.037

Star Catalogue Identifiers

TIC

TIC 120768052

Gaia DR2

Gaia DR2 2103885782875978880

Gaia DR3

Gaia DR3 2103885782875978880

System

Kepler-1599

Percentile among Super-Earth cohort

Radius 1.620 R⊕ · percentile 54 / cohort 1176

Mass 3.260 M⊕ · percentile 49 / cohort 1176

Orbital period 122.36 d · percentile 99 / cohort 1164

Distance 1,328.20 pc · percentile 92 / cohort 1171

ESI 0.689 · percentile 84 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

122.364 days

Semi-major axis

0.4823 AU

Eccentricity

0.000

Inclination

89.83 °

Year Length

A year here lasts approximately 122.36 Earth days (33.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4823 AU.

Transit Fingerprint

Depth

0.035 %

Duration

9.320 h

Impact parameter b

0.255

Rp / R★

0.014656

Transit midpoint (BJD)

2,454,967.3327

Photometric dip

Transit produces a flux drop of 353 ppm lasting ≈ 9.32 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014656

Semi-major axis / stellar radius

100.100

Impact parameter (b)

0.255

Transit mid-time (BJD)

2,454,967.3327

Angular separation (arcsec)

0.36300

Eq. Temperature

407K

(134 °C)

Insolation (S⊕)

8.20

Earth = 1.00

Earth Similarity (ESI)

0.689

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-1599

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,767 K — cooler than the Sun (5,778 K)

Estimated Age

4.27 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.990 R☉

Stellar Mass

0.990 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.790 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,328.20 parsec

Light-years 4,332.00 ly

V-band magnitude

14.97 mag

Voyager-speed travel 76,394,886 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.724 mas

Total Proper Motion

8.219 mas/yr

PM Right Ascension

-3.03 mas/yr

PM Declination

-7.64 mas/yr

Galactic Cartesian (pc)

x = 0.210 · y = -0.723 · z = 0.658

Equatorial (J2000)

RA 286.22087° · Dec 41.15119°

Galactic ℓ, b

71.798° · 15.116°

Ecliptic λ, β

297.640° · 63.042°

HTM-20 index

1733744607