Key parameters at a glance

A radius of 2.51 Earth radii
A mass of 6.85 Earth masses
Surface gravity around 1.09 g
An orbital period of 7.561 days
Semi-major axis 0.0761 AU
Equilibrium temperature 914 K (641 °C)
Distance from Earth 4,747.20 light-years
Earth Similarity Index 0.275
Travel time at Voyager 1 speed 83,716,878 years

Kepler-1033 b Planet Profile

Physical Specs

Radius

2.51 R⊕

Radius (Jupiter)

0.224 R♃

Mass

6.85 M⊕

Mass (Jupiter)

0.022 M♃

Density

2.38 g/cm³

Surface Gravity

1.09 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.275

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

#1159of 1978

top 58.5%

This planet

2.51R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

GJ 876 d 2.51 R⊕ Kepler-239 c 2.51 R⊕ Kepler-445 c 2.51 R⊕

Metric	Earth	Kepler-1033 b	Jupiter
Radius (R⊕)	1.00	2.51	11.21
Mass (M⊕)	1.00	6.85	317.83
Density (g/cm³)	5.51	2.38	1.33
Surface Gravity (g)	1.00	1.09	2.53
Insolation (S⊕)	1.00	159.42	0.037

Star Catalogue Identifiers

TIC

TIC 164560648

Gaia DR2

Gaia DR2 2106679126525940096

Gaia DR3

Gaia DR3 2106679126525940096

System

Kepler-1033

Percentile among Sub-Neptune cohort

Radius 2.510 R⊕ · percentile 41 / cohort 1978

Mass 6.850 M⊕ · percentile 38 / cohort 1978

Orbital period 7.56 d · percentile 24 / cohort 1946

Distance 1,455.50 pc · percentile 92 / cohort 1975

ESI 0.275 · percentile 22 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

7.561 days

Semi-major axis

0.0761 AU

Eccentricity

0.000

Inclination

89.92 °

Year Length

A year here lasts approximately 7.56 Earth days (2.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0761 AU.

Transit Fingerprint

Depth

0.066 %

Duration

3.826 h

Impact parameter b

0.028

Rp / R★

0.025082

Transit midpoint (BJD)

2,454,967.4789

Photometric dip

Transit produces a flux drop of 660 ppm lasting ≈ 3.83 h.

Extended Orbital Architecture

Planet / star radius ratio

0.025082

Semi-major axis / stellar radius

15.332

Impact parameter (b)

0.028

Transit mid-time (BJD)

2,454,967.4789

Angular separation (arcsec)

0.05230

Eq. Temperature

914K

(641 °C)

Insolation (S⊕)

159.42

Earth = 1.00

Earth Similarity (ESI)

0.275

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-1033

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,547 K — cooler than the Sun (5,778 K)

Estimated Age

5.01 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.920 R☉

Stellar Mass

0.940 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.490 dex

Stellar density

1.193 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,455.50 parsec

Light-years 4,747.20 ly

V-band magnitude

16.19 mag

Voyager-speed travel 83,716,878 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.659 mas

Total Proper Motion

16.141 mas/yr

PM Right Ascension

-6.30 mas/yr

PM Declination

-14.86 mas/yr

Galactic Cartesian (pc)

x = 0.170 · y = -0.691 · z = 0.702

Equatorial (J2000)

RA 283.84510° · Dec 44.60903°

Galactic ℓ, b

74.470° · 18.018°

Ecliptic λ, β

295.641° · 66.820°

HTM-20 index

366158565