Key parameters at a glance

A radius of 4.10 Earth radii
A mass of 15.70 Earth masses
Surface gravity around 0.93 g
An orbital period of 32.312 days
Semi-major axis 0.2015 AU
Equilibrium temperature 699 K (426 °C)
Distance from Earth 4,205.49 light-years
Earth Similarity Index 0.295
Travel time at Voyager 1 speed 74,163,778 years

Kepler-1732 b Planet Profile

Physical Specs

Radius

4.10 R⊕

Radius (Jupiter)

0.366 R♃

Mass

15.70 M⊕

Mass (Jupiter)

0.050 M♃

Density

1.25 g/cm³

Surface Gravity

0.93 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.295

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#547of 574

top 95.1%

This planet

4.10R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

KIC 8540376 b 4.10 R⊕ Kepler-247 c 4.09 R⊕ Kepler-815 b 4.11 R⊕

Metric	Earth	Kepler-1732 b	Jupiter
Radius (R⊕)	1.00	4.10	11.21
Mass (M⊕)	1.00	15.70	317.83
Density (g/cm³)	5.51	1.25	1.33
Surface Gravity (g)	1.00	0.93	2.53
Insolation (S⊕)	1.00	27.05	0.037

Star Catalogue Identifiers

TIC

TIC 137547023

Gaia DR2

Gaia DR2 2051836379889114240

Gaia DR3

Gaia DR3 2051836379889114240

System

Kepler-1732

Percentile among Neptune-like cohort

Radius 4.099 R⊕ · percentile 5 / cohort 574

Mass 15.700 M⊕ · percentile 11 / cohort 574

Orbital period 32.31 d · percentile 62 / cohort 524

Distance 1,289.41 pc · percentile 80 / cohort 572

ESI 0.295 · percentile 49 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

32.312 days

Semi-major axis

0.2015 AU

Eccentricity

0.000

Inclination

86.72 °

Year Length

A year here lasts approximately 32.31 Earth days (8.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2015 AU.

Transit Fingerprint

Depth

0.068 %

Duration

6.075 h

Impact parameter b

0.928

Rp / R★

0.029170

Transit midpoint (BJD)

2,454,966.8627

Photometric dip

Transit produces a flux drop of 678 ppm lasting ≈ 6.08 h.

Extended Orbital Architecture

Planet / star radius ratio

0.029170

Semi-major axis / stellar radius

18.700

Impact parameter (b)

0.928

Transit mid-time (BJD)

2,454,966.8627

Angular separation (arcsec)

0.15600

Eq. Temperature

699K

(426 °C)

Insolation (S⊕)

27.05

Earth = 1.00

Earth Similarity (ESI)

0.295

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

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at Kepler (12 shown).

Kepler-1816 b · Super-Earth Kepler-1705 c · Sub-Neptune Kepler-1948 b · Rocky Terrestrial Kepler-196 d · Sub-Neptune Kepler-1853 b · Super-Earth Kepler-1840 b · Sub-Neptune Kepler-1881 b · Sub-Neptune Kepler-1858 b · Sub-Neptune Kepler-1874 b · Sub-Neptune Kepler-1802 c · Sub-Neptune Kepler-1749 b · Super-Earth Kepler-1849 b · Sub-Neptune

Host System: Kepler-1732

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,821 K — hotter than the Sun (5,778 K)

Estimated Age

2.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.494 R☉

Stellar Mass

1.043 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.108 dex

Stellar density

0.079 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,289.41 parsec

Light-years 4,205.49 ly

V-band magnitude

14.88 mag

Voyager-speed travel 74,163,778 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.748 mas

Total Proper Motion

7.896 mas/yr

PM Right Ascension

3.56 mas/yr

PM Declination

-7.05 mas/yr

Galactic Cartesian (pc)

x = 0.301 · y = -0.733 · z = 0.610

Equatorial (J2000)

RA 292.29101° · Dec 37.58077°

Galactic ℓ, b

70.530° · 9.353°

Ecliptic λ, β

304.942° · 58.346°

HTM-20 index

1270644443