Key parameters at a glance

A radius of 1.06 Earth radii
A mass of 1.20 Earth masses
Surface gravity around 1.07 g
An orbital period of 2.947 days
Semi-major axis 0.0414 AU
Equilibrium temperature 1,497 K (1224 °C)
Distance from Earth 3,982.53 light-years
Earth Similarity Index 0.204
Travel time at Voyager 1 speed 70,231,875 years

Kepler-1597 b Planet Profile

Physical Specs

Radius

1.06 R⊕

Radius (Jupiter)

0.095 R♃

Mass

1.20 M⊕

Mass (Jupiter)

0.004 M♃

Density

5.54 g/cm³

Surface Gravity

1.07 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.204

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

#270of 570

top 47.2%

This planet

1.06R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1200 b 1.06 R⊕ Kepler-316 b 1.06 R⊕ Kepler-1203 b 1.06 R⊕

Metric	Earth	Kepler-1597 b	Jupiter
Radius (R⊕)	1.00	1.06	11.21
Mass (M⊕)	1.00	1.20	317.83
Density (g/cm³)	5.51	5.54	1.33
Surface Gravity (g)	1.00	1.07	2.53
Insolation (S⊕)	1.00	1,431.31	0.037

Star Catalogue Identifiers

TIC

TIC 158722002

Gaia DR2

Gaia DR2 2102530703514980864

Gaia DR3

Gaia DR3 2102530703514980864

System

Kepler-1597

Percentile among Rocky Terrestrial cohort

Radius 1.060 R⊕ · percentile 51 / cohort 570

Mass 1.200 M⊕ · percentile 46 / cohort 570

Orbital period 2.95 d · percentile 34 / cohort 567

Distance 1,221.05 pc · percentile 96 / cohort 566

ESI 0.204 · percentile 15 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

2.947 days

Semi-major axis

0.0414 AU

Eccentricity

0.000

Inclination

89.92 °

Year Length

A year here lasts approximately 2.95 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0414 AU.

Transit Fingerprint

Depth

0.006 %

Duration

3.280 h

Impact parameter b

0.318

Rp / R★

0.007105

Transit midpoint (BJD)

2,454,965.4154

Photometric dip

Transit produces a flux drop of 57 ppm lasting ≈ 3.28 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007105

Semi-major axis / stellar radius

7.208

Impact parameter (b)

0.318

Transit mid-time (BJD)

2,454,965.4154

Angular separation (arcsec)

0.03390

Eq. Temperature

1,497K

(1224 °C)

Insolation (S⊕)

1,431.31

Earth = 1.00

Earth Similarity (ESI)

0.204

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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-1597

Spectral Class

F-type yellow-white

Effective Temperature

6,377 K — hotter than the Sun (5,778 K)

Estimated Age

2.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.390 R☉

Stellar Mass

1.250 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.240 dex

Stellar density

0.430 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,221.05 parsec

Light-years 3,982.53 ly

V-band magnitude

14.26 mag

Voyager-speed travel 70,231,875 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.790 mas

Total Proper Motion

8.282 mas/yr

PM Right Ascension

-1.24 mas/yr

PM Declination

-8.19 mas/yr

Galactic Cartesian (pc)

x = 0.230 · y = -0.701 · z = 0.675

Equatorial (J2000)

RA 288.16397° · Dec 42.48101°

Galactic ℓ, b

73.655° · 14.316°

Ecliptic λ, β

301.556° · 63.943°

HTM-20 index

-1960443933