Key parameters at a glance

A radius of 2.97 Earth radii
A mass of 9.11 Earth masses
Surface gravity around 1.03 g
An orbital period of 150.878 days
Semi-major axis 0.5537 AU
Equilibrium temperature 423 K (150 °C)
Distance from Earth 1,275.86 light-years
Earth Similarity Index 0.535
Travel time at Voyager 1 speed 22,499,795 years

Kepler-1672 b Planet Profile

Physical Specs

Radius

2.97 R⊕

Radius (Jupiter)

0.265 R♃

Mass

9.11 M⊕

Mass (Jupiter)

0.029 M♃

Density

1.91 g/cm³

Surface Gravity

1.03 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.535

HZ Position Inner

Controversial No

Discovery

Year 2020

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#545of 1978

top 27.5%

This planet

2.97R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-949 c 2.97 R⊕ Kepler-1354 b 2.97 R⊕ Kepler-993 b 2.97 R⊕

Metric	Earth	Kepler-1672 b	Jupiter
Radius (R⊕)	1.00	2.97	11.21
Mass (M⊕)	1.00	9.11	317.83
Density (g/cm³)	5.51	1.91	1.33
Surface Gravity (g)	1.00	1.03	2.53
Insolation (S⊕)	1.00	4.40	0.037

Star Catalogue Identifiers

TIC

TIC 170236331

Gaia DR2

Gaia DR2 2073677040206349696

Gaia DR3

Gaia DR3 2073677040206349696

System

Kepler-1672

Percentile among Sub-Neptune cohort

Radius 2.970 R⊕ · percentile 72 / cohort 1978

Mass 9.110 M⊕ · percentile 66 / cohort 1978

Orbital period 150.88 d · percentile 97 / cohort 1946

Distance 391.18 pc · percentile 41 / cohort 1975

ESI 0.535 · percentile 75 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

150.878 days

Semi-major axis

0.5537 AU

Eccentricity

0.000

Inclination

89.99 °

Year Length

A year here lasts approximately 150.88 Earth days (41.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5537 AU.

Transit Fingerprint

Depth

0.065 %

Duration

8.641 h

Impact parameter b

0.010

Rp / R★

0.023496

Transit midpoint (BJD)

2,455,039.6926

Photometric dip

Transit produces a flux drop of 651 ppm lasting ≈ 8.64 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023496

Semi-major axis / stellar radius

135.820

Impact parameter (b)

0.010

Transit mid-time (BJD)

2,455,039.6926

Angular separation (arcsec)

1.42000

Eq. Temperature

423K

(150 °C)

Insolation (S⊕)

4.40

Earth = 1.00

Earth Similarity (ESI)

0.535

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

Armstrong et al. 2021

Instrument

Kepler CCD Array

Publication

2021-07

Observation locale

Space

Discovery cohort

Planets confirmed in 2020 at Kepler (12 shown).

Kepler-1649 c · Rocky Terrestrial Kepler-1701 b · Sub-Neptune Kepler-1690 b · Sub-Neptune Kepler-1700 b · Sub-Neptune Kepler-1684 b · Sub-Neptune Kepler-1678 b · Sub-Neptune Kepler-598 c · Sub-Neptune Kepler-1661 b · Sub-Neptune Kepler-1663 b · Sub-Neptune Kepler-1681 b · Sub-Neptune Kepler-1702 b · Super-Earth Kepler-1674 b · Sub-Neptune

Host System: Kepler-1672

Spectral Class

F-type yellow-white

Effective Temperature

6,132 K — hotter than the Sun (5,778 K)

Estimated Age

4.19 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.088 R☉

Stellar Mass

1.160 M☉

Metallicity [Fe/H]

-0.25

Extended Stellar Properties

Surface gravity (log g)

4.429 dex

Stellar density

1.268 g/cm³

Systemic radial velocity

-2.50 km/s

Metallicity ratio

[M/H]

Distance

391.18 parsec

Light-years 1,275.86 ly

V-band magnitude

12.55 mag

Voyager-speed travel 22,499,795 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.528 mas

Total Proper Motion

20.460 mas/yr

PM Right Ascension

-11.74 mas/yr

PM Declination

-16.76 mas/yr

Galactic Cartesian (pc)

x = 0.357 · y = -0.674 · z = 0.647

Equatorial (J2000)

RA 297.94010° · Dec 40.27856°

Galactic ℓ, b

75.044° · 6.785°

Ecliptic λ, β

314.698° · 59.457°

HTM-20 index

-604246846