Key parameters at a glance

A radius of 1.58 Earth radii
A mass of 3.12 Earth masses
Surface gravity around 1.25 g
An orbital period of 186.404 days
Semi-major axis 0.3875 AU
Equilibrium temperature 925 K (652 °C)
Distance from Earth 3,636.35 light-years
Earth Similarity Index 0.320
Travel time at Voyager 1 speed 64,126,956 years

Kepler-1633 b Planet Profile

Physical Specs

Radius

1.58 R⊕

Radius (Jupiter)

0.141 R♃

Mass

3.12 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.35 g/cm³

Surface Gravity

1.25 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.320

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

#603of 1176

top 51.2%

This planet

1.58R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-111 b 1.58 R⊕ Kepler-445 b 1.58 R⊕ Kepler-386 c 1.58 R⊕

Metric	Earth	Kepler-1633 b	Jupiter
Radius (R⊕)	1.00	1.58	11.21
Mass (M⊕)	1.00	3.12	317.83
Density (g/cm³)	5.51	4.35	1.33
Surface Gravity (g)	1.00	1.25	2.53
Insolation (S⊕)	1.00	26.26	0.037

Star Catalogue Identifiers

TIC

TIC 158789121

Gaia DR2

Gaia DR2 2127190000546917632

Gaia DR3

Gaia DR3 2127190000546917632

System

Kepler-1633

Percentile among Super-Earth cohort

Radius 1.580 R⊕ · percentile 48 / cohort 1176

Mass 3.120 M⊕ · percentile 44 / cohort 1176

Orbital period 186.40 d · percentile 99 / cohort 1164

Distance 1,114.91 pc · percentile 86 / cohort 1171

ESI 0.320 · percentile 42 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

186.404 days

Semi-major axis

0.3875 AU

Eccentricity

0.000

Inclination

88.51 °

Year Length

A year here lasts approximately 186.40 Earth days (51.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3875 AU.

Transit Fingerprint

Depth

0.013 %

Duration

10.460 h

Impact parameter b

0.294

Rp / R★

0.010575

Transit midpoint (BJD)

2,455,049.2211

Photometric dip

Transit produces a flux drop of 129 ppm lasting ≈ 10.46 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010575

Semi-major axis / stellar radius

31.900

Impact parameter (b)

0.294

Transit mid-time (BJD)

2,455,049.2211

Angular separation (arcsec)

0.34800

Eq. Temperature

925K

(652 °C)

Insolation (S⊕)

26.26

Earth = 1.00

Earth Similarity (ESI)

0.320

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-1633

Spectral Class

F-type yellow-white

Effective Temperature

6,256 K — hotter than the Sun (5,778 K)

Estimated Age

2.82 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.320 R☉

Stellar Mass

1.200 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.270 dex

Stellar density

0.159 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,114.91 parsec

Light-years 3,636.35 ly

V-band magnitude

13.52 mag

Voyager-speed travel 64,126,956 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.868 mas

Total Proper Motion

5.149 mas/yr

PM Right Ascension

-3.19 mas/yr

PM Declination

4.05 mas/yr

Galactic Cartesian (pc)

x = 0.225 · y = -0.671 · z = 0.706

Equatorial (J2000)

RA 288.51517° · Dec 44.92325°

Galactic ℓ, b

76.072° · 15.064°

Ecliptic λ, β

303.856° · 66.200°

HTM-20 index

1290553799