Key parameters at a glance

A radius of 1.56 Earth radii
A mass of 3.05 Earth masses
Surface gravity around 1.25 g
An orbital period of 4.136 days
Semi-major axis 0.0516 AU
Equilibrium temperature 1,226 K (953 °C)
Distance from Earth 4,331.35 light-years
Earth Similarity Index 0.235
Travel time at Voyager 1 speed 76,383,383 years

Kepler-1433 b Planet Profile

Physical Specs

Radius

1.56 R⊕

Radius (Jupiter)

0.139 R♃

Mass

3.05 M⊕

Mass (Jupiter)

0.010 M♃

Density

4.41 g/cm³

Surface Gravity

1.25 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.235

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

#636of 1176

top 54.0%

This planet

1.56R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-338 e 1.56 R⊕ Kepler-402 c 1.56 R⊕ Kepler-309 b 1.56 R⊕

Metric	Earth	Kepler-1433 b	Jupiter
Radius (R⊕)	1.00	1.56	11.21
Mass (M⊕)	1.00	3.05	317.83
Density (g/cm³)	5.51	4.41	1.33
Surface Gravity (g)	1.00	1.25	2.53
Insolation (S⊕)	1.00	535.42	0.037

Star Catalogue Identifiers

TIC

TIC 399951196

System

Kepler-1433

Percentile among Super-Earth cohort

Radius 1.560 R⊕ · percentile 45 / cohort 1176

Mass 3.050 M⊕ · percentile 41 / cohort 1176

Orbital period 4.14 d · percentile 32 / cohort 1164

Distance 1,328.00 pc · percentile 92 / cohort 1171

ESI 0.235 · percentile 20 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.136 days

Semi-major axis

0.0516 AU

Eccentricity

0.000

Inclination

89.27 °

Year Length

A year here lasts approximately 4.14 Earth days (1.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0516 AU.

Transit Fingerprint

Depth

0.016 %

Duration

2.789 h

Impact parameter b

0.168

Rp / R★

0.011672

Transit midpoint (BJD)

2,454,966.5396

Photometric dip

Transit produces a flux drop of 156 ppm lasting ≈ 2.79 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011672

Semi-major axis / stellar radius

13.270

Impact parameter (b)

0.168

Transit mid-time (BJD)

2,454,966.5396

Angular separation (arcsec)

0.03890

Eq. Temperature

1,226K

(953 °C)

Insolation (S⊕)

535.42

Earth = 1.00

Earth Similarity (ESI)

0.235

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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-1433

Spectral Class

F-type yellow-white

Effective Temperature

6,097 K — hotter than the Sun (5,778 K)

Estimated Age

3.02 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.190 R☉

Stellar Mass

1.140 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.340 dex

Stellar density

1.656 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,328.00 parsec

Light-years 4,331.35 ly

V-band magnitude

15.05 mag

Voyager-speed travel 76,383,383 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Total Proper Motion

12.673 mas/yr

PM Right Ascension

11.93 mas/yr

PM Declination

-4.27 mas/yr

Galactic Cartesian (pc)

x = 0.194 · y = -0.620 · z = 0.760

Equatorial (J2000)

RA 287.36346° · Dec 49.45686°

Galactic ℓ, b

80.124° · 17.523°

Ecliptic λ, β

306.004° · 70.733°

HTM-20 index

709854232