Key parameters at a glance

A radius of 13.30 Earth radii
A mass of 734.18 Earth masses
Surface gravity around 4.15 g
An orbital period of 4,073.000 days
Semi-major axis 5.1000 AU
Distance from Earth 752.99 light-years
Earth Similarity Index 0.377
Travel time at Voyager 1 speed 13,279,033 years

2 siblings around Kepler-454

Kepler-454 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-454 b	Sub-Neptune	2.37	5.40	10.574	916	2015
Kepler-454 c	Gas Giant	12.90	1,433.41	524.190	—	2015
Kepler-454 d this	Gas Giant	13.30	734.18	4,073.000	—	2023

Kepler-454 d Planet Profile

Physical Specs

Radius

13.30 R⊕

Radius (Jupiter)

1.190 R♃

Mass

734.18 M⊕

Mass (Jupiter)

2.310 M♃

Density

1.71 g/cm³

Surface Gravity

4.15 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.377

HZ Position Unknown

Controversial No

Discovery

Year 2023

Method Radial Velocity

Facility Roque de los Muchachos Observatory

Telescope 3.58 m Telescopio Nazionale Galileo

Size rank in cohort

Rank by radius

#793of 1771

top 44.7%

This planet

13.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 12661 b 13.30 R⊕ HD 129445 b 13.30 R⊕ GJ 876 b 13.30 R⊕

Metric	Earth	Kepler-454 d	Jupiter
Radius (R⊕)	1.00	13.30	11.21
Mass (M⊕)	1.00	734.18	317.83
Density (g/cm³)	5.51	1.71	1.33
Surface Gravity (g)	1.00	4.15	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	734.184 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 121276638

Gaia DR2

Gaia DR2 2099541715513813504

Gaia DR3

Gaia DR3 2099541715513813504

System

Kepler-454

Percentile among Gas Giant cohort

Radius 13.300 R⊕ · percentile 53 / cohort 1771

Mass 734.184 M⊕ · percentile 59 / cohort 1747

Orbital period 4,073.00 d · percentile 91 / cohort 1533

Distance 230.87 pc · percentile 54 / cohort 1759

ESI 0.377 · percentile 78 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4,073.000 days

Semi-major axis

5.1000 AU

Eccentricity

0.089

Inclination

— °

Year Length

A year here lasts about 11.15 Earth years on a nearly circular orbit at a mean orbital distance of 5.1000 AU.

Extended Orbital Architecture

RV semi-amplitude (K)

28.400 m/s

Transit mid-time (BJD)

2,458,433.0000

Long. of periastron (ω)

117.00°

Angular separation (arcsec)

22.10000

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.377

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Bonomo et al. 2023

Instrument

HARPS-N Spectrograph

Publication

2023-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2023 at Roque de los Muchachos Observatory (7 shown).

GJ 9404 b · Sub-Neptune Kepler-10 d · Sub-Neptune HD 99492 c · Neptune-like GJ 328 c · Neptune-like K2-312 c · Gas Giant TOI-4010 e · Gas Giant Kepler-68 e · Gas Giant

Host System: Kepler-454

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,687 K — cooler than the Sun (5,778 K)

Estimated Age

5.25 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.066 R☉

Stellar Mass

1.030 M☉

Metallicity [Fe/H]

0.32

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

1.199 g/cm³

Systemic radial velocity

-70.26 km/s

Rotational v·sin i

2.40 km/s

Metallicity ratio

[Fe/H]

Distance

230.87 parsec

Light-years 752.99 ly

V-band magnitude

11.57 mag

Voyager-speed travel 13,279,033 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

4.303 mas

Total Proper Motion

53.015 mas/yr

PM Right Ascension

21.85 mas/yr

PM Declination

48.30 mas/yr

Galactic Cartesian (pc)

x = 0.236 · y = -0.749 · z = 0.619

Equatorial (J2000)

RA 287.47865° · Dec 38.22908°

Galactic ℓ, b

69.441° · 13.054°

Ecliptic λ, β

298.127° · 59.973°

HTM-20 index

686175181