Key parameters at a glance

A radius of 0.89 Earth radii
A mass of 0.64 Earth masses
Surface gravity around 0.81 g
An orbital period of 6.110 days
Semi-major axis 0.0596 AU
Equilibrium temperature 1,093 K (820 °C)
Distance from Earth 1,849.91 light-years
Earth Similarity Index 0.285
Travel time at Voyager 1 speed 32,623,239 years

Kepler-1637 b Planet Profile

Physical Specs

Radius

0.89 R⊕

Radius (Jupiter)

0.079 R♃

Mass

0.64 M⊕

Mass (Jupiter)

0.002 M♃

Density

4.99 g/cm³

Surface Gravity

0.81 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.285

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

#418of 570

top 73.2%

This planet

0.89R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-353 b 0.89 R⊕ Kepler-387 c 0.89 R⊕ Kepler-303 b 0.89 R⊕

Metric	Earth	Kepler-1637 b	Jupiter
Radius (R⊕)	1.00	0.89	11.21
Mass (M⊕)	1.00	0.64	317.83
Density (g/cm³)	5.51	4.99	1.33
Surface Gravity (g)	1.00	0.81	2.53
Insolation (S⊕)	1.00	337.78	0.037

Star Catalogue Identifiers

TIC

TIC 48131596

Gaia DR2

Gaia DR2 2119706690045629824

Gaia DR3

Gaia DR3 2119706690045629824

System

Kepler-1637

Percentile among Rocky Terrestrial cohort

Radius 0.890 R⊕ · percentile 25 / cohort 570

Mass 0.640 M⊕ · percentile 21 / cohort 570

Orbital period 6.11 d · percentile 61 / cohort 567

Distance 567.19 pc · percentile 70 / cohort 566

ESI 0.285 · percentile 34 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

6.110 days

Semi-major axis

0.0596 AU

Eccentricity

0.000

Inclination

89.24 °

Year Length

A year here lasts approximately 6.11 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0596 AU.

Transit Fingerprint

Depth

0.006 %

Duration

5.585 h

Impact parameter b

0.108

Rp / R★

0.007618

Transit midpoint (BJD)

2,454,966.8096

Photometric dip

Transit produces a flux drop of 60 ppm lasting ≈ 5.59 h.

Extended Orbital Architecture

Planet / star radius ratio

0.007618

Semi-major axis / stellar radius

8.410

Impact parameter (b)

0.108

Transit mid-time (BJD)

2,454,966.8096

Angular separation (arcsec)

0.10500

Eq. Temperature

1,093K

(820 °C)

Insolation (S⊕)

337.78

Earth = 1.00

Earth Similarity (ESI)

0.285

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-1637

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,789 K — hotter than the Sun (5,778 K)

Estimated Age

4.17 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.020 R☉

Stellar Mass

1.020 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.430 dex

Stellar density

0.301 g/cm³

Metallicity ratio

[Fe/H]

Distance

567.19 parsec

Light-years 1,849.91 ly

V-band magnitude

13.38 mag

Voyager-speed travel 32,623,239 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Total Proper Motion

22.108 mas/yr

PM Right Ascension

-13.30 mas/yr

PM Declination

-17.66 mas/yr

Galactic Cartesian (pc)

x = 0.141 · y = -0.652 · z = 0.745

Equatorial (J2000)

RA 282.23680° · Dec 48.15420°

Galactic ℓ, b

77.612° · 20.251°

Ecliptic λ, β

295.097° · 70.529°

HTM-20 index

2043627228