Key parameters at a glance

A radius of 2.28 Earth radii
A mass of 5.82 Earth masses
Surface gravity around 1.12 g
An orbital period of 10.046 days
Semi-major axis 0.0904 AU
Equilibrium temperature 766 K (493 °C)
Distance from Earth 1,246.36 light-years
Earth Similarity Index 0.343
Travel time at Voyager 1 speed 21,979,548 years

Kepler-484 b Planet Profile

Physical Specs

Radius

2.28 R⊕

Radius (Jupiter)

0.203 R♃

Mass

5.82 M⊕

Mass (Jupiter)

0.018 M♃

Density

2.70 g/cm³

Surface Gravity

1.12 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.343

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

#1536of 1978

top 77.6%

This planet

2.28R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

GJ 806 c 2.28 R⊕ Kepler-1020 b 2.28 R⊕ DMPP-6 b 2.28 R⊕

Metric	Earth	Kepler-484 b	Jupiter
Radius (R⊕)	1.00	2.28	11.21
Mass (M⊕)	1.00	5.82	317.83
Density (g/cm³)	5.51	2.70	1.33
Surface Gravity (g)	1.00	1.12	2.53
Insolation (S⊕)	1.00	90.63	0.037

Star Catalogue Identifiers

TIC

TIC 164721759

Gaia DR2

Gaia DR2 2107243072911617024

Gaia DR3

Gaia DR3 2107243072911617024

System

Kepler-484

Percentile among Sub-Neptune cohort

Radius 2.280 R⊕ · percentile 22 / cohort 1978

Mass 5.820 M⊕ · percentile 22 / cohort 1978

Orbital period 10.05 d · percentile 34 / cohort 1946

Distance 382.14 pc · percentile 40 / cohort 1975

ESI 0.343 · percentile 39 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

10.046 days

Semi-major axis

0.0904 AU

Eccentricity

0.000

Inclination

89.82 °

Year Length

A year here lasts approximately 10.05 Earth days (2.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0904 AU.

Transit Fingerprint

Depth

0.067 %

Duration

3.199 h

Impact parameter b

0.680

Rp / R★

0.023526

Transit midpoint (BJD)

2,454,962.0933

Photometric dip

Transit produces a flux drop of 674 ppm lasting ≈ 3.20 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023526

Semi-major axis / stellar radius

24.500

Impact parameter (b)

0.680

Transit mid-time (BJD)

2,454,962.0933

Angular separation (arcsec)

0.23600

Eq. Temperature

766K

(493 °C)

Insolation (S⊕)

90.63

Earth = 1.00

Earth Similarity (ESI)

0.343

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

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-484

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,668 K — cooler than the Sun (5,778 K)

Estimated Age

1.48 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.870 R☉

Stellar Mass

0.960 M☉

Metallicity [Fe/H]

-0.10

Extended Stellar Properties

Surface gravity (log g)

4.540 dex

Stellar density

1.390 g/cm³

Systemic radial velocity

0.25 km/s

Metallicity ratio

[Fe/H]

Distance

382.14 parsec

Light-years 1,246.36 ly

V-band magnitude

13.08 mag

Voyager-speed travel 21,979,548 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.588 mas

Total Proper Motion

7.654 mas/yr

PM Right Ascension

-7.25 mas/yr

PM Declination

-2.45 mas/yr

Galactic Cartesian (pc)

x = 0.172 · y = -0.670 · z = 0.722

Equatorial (J2000)

RA 284.39428° · Dec 46.24911°

Galactic ℓ, b

76.228° · 18.234°

Ecliptic λ, β

297.713° · 68.308°

HTM-20 index

-1556612705