Key parameters at a glance

A radius of 3.18 Earth radii
A mass of 10.20 Earth masses
Surface gravity around 1.01 g
An orbital period of 161.474 days
Semi-major axis 0.5620 AU
Equilibrium temperature 343 K (70 °C)
Distance from Earth 2,739.01 light-years
Earth Similarity Index 0.615
Travel time at Voyager 1 speed 48,302,366 years

Kepler-630 b Planet Profile

Physical Specs

Radius

3.18 R⊕

Radius (Jupiter)

0.284 R♃

Mass

10.20 M⊕

Mass (Jupiter)

0.032 M♃

Density

1.74 g/cm³

Surface Gravity

1.01 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.615

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

#367of 1978

top 18.5%

This planet

3.18R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

TOI-2458 c 3.18 R⊕ Kepler-1502 b 3.18 R⊕ NGTS-4 b 3.18 R⊕

Metric	Earth	Kepler-630 b	Jupiter
Radius (R⊕)	1.00	3.18	11.21
Mass (M⊕)	1.00	10.20	317.83
Density (g/cm³)	5.51	1.74	1.33
Surface Gravity (g)	1.00	1.01	2.53
Insolation (S⊕)	1.00	5.57	0.037

Star Catalogue Identifiers

TIC

TIC 138216186

Gaia DR2

Gaia DR2 2053235577156249088

Gaia DR3

Gaia DR3 2053235577156249088

System

Kepler-630

Percentile among Sub-Neptune cohort

Radius 3.180 R⊕ · percentile 81 / cohort 1978

Mass 10.200 M⊕ · percentile 74 / cohort 1978

Orbital period 161.47 d · percentile 97 / cohort 1946

Distance 839.78 pc · percentile 68 / cohort 1975

ESI 0.615 · percentile 84 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

161.474 days

Semi-major axis

0.5620 AU

Eccentricity

0.000

Inclination

89.48 °

Year Length

A year here lasts approximately 161.47 Earth days (44.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5620 AU.

Transit Fingerprint

Depth

0.083 %

Duration

10.598 h

Impact parameter b

0.882

Rp / R★

0.027957

Transit midpoint (BJD)

2,455,003.6032

Photometric dip

Transit produces a flux drop of 828 ppm lasting ≈ 10.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.027957

Semi-major axis / stellar radius

57.700

Impact parameter (b)

0.882

Transit mid-time (BJD)

2,455,003.6032

Angular separation (arcsec)

0.66900

Eq. Temperature

343K

(70 °C)

Insolation (S⊕)

5.57

Earth = 1.00

Earth Similarity (ESI)

0.615

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure.

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-630

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,829 K — hotter than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.040 R☉

Stellar Mass

1.020 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.420 dex

Stellar density

0.400 g/cm³

Metallicity ratio

[Fe/H]

Distance

839.78 parsec

Light-years 2,739.01 ly

V-band magnitude

14.00 mag

Voyager-speed travel 48,302,366 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.162 mas

Total Proper Motion

6.953 mas/yr

PM Right Ascension

4.17 mas/yr

PM Declination

-5.56 mas/yr

Galactic Cartesian (pc)

x = 0.305 · y = -0.703 · z = 0.642

Equatorial (J2000)

RA 293.42706° · Dec 39.94240°

Galactic ℓ, b

73.069° · 9.649°

Ecliptic λ, β

308.003° · 60.328°

HTM-20 index

2090627579