Key parameters at a glance

A radius of 2.85 Earth radii
A mass of 8.50 Earth masses
Surface gravity around 1.05 g
An orbital period of 14.132 days
Semi-major axis 0.1106 AU
Equilibrium temperature 675 K (402 °C)
Distance from Earth 3,324.38 light-years
Earth Similarity Index 0.357
Travel time at Voyager 1 speed 58,625,397 years

Kepler-800 b Planet Profile

Physical Specs

Radius

2.85 R⊕

Radius (Jupiter)

0.254 R♃

Mass

8.50 M⊕

Mass (Jupiter)

0.027 M♃

Density

2.02 g/cm³

Surface Gravity

1.05 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.357

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

#685of 1978

top 34.6%

This planet

2.85R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-358 c 2.85 R⊕ Kepler-288 c 2.85 R⊕ K2-199 c 2.85 R⊕

Metric	Earth	Kepler-800 b	Jupiter
Radius (R⊕)	1.00	2.85	11.21
Mass (M⊕)	1.00	8.50	317.83
Density (g/cm³)	5.51	2.02	1.33
Surface Gravity (g)	1.00	1.05	2.53
Insolation (S⊕)	1.00	44.87	0.037

Star Catalogue Identifiers

TIC

TIC 158275161

Gaia DR2

Gaia DR2 2106132875405444352

Gaia DR3

Gaia DR3 2106132875405444352

System

Kepler-800

Percentile among Sub-Neptune cohort

Radius 2.850 R⊕ · percentile 65 / cohort 1978

Mass 8.500 M⊕ · percentile 60 / cohort 1978

Orbital period 14.13 d · percentile 48 / cohort 1946

Distance 1,019.26 pc · percentile 79 / cohort 1975

ESI 0.357 · percentile 42 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

14.132 days

Semi-major axis

0.1106 AU

Eccentricity

0.000

Inclination

86.95 °

Year Length

A year here lasts approximately 14.13 Earth days (3.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1106 AU.

Transit Fingerprint

Depth

0.103 %

Duration

3.854 h

Impact parameter b

0.883

Rp / R★

0.032321

Transit midpoint (BJD)

2,454,975.2611

Photometric dip

Transit produces a flux drop of 1,033 ppm lasting ≈ 3.85 h.

Extended Orbital Architecture

Planet / star radius ratio

0.032321

Semi-major axis / stellar radius

14.700

Impact parameter (b)

0.883

Transit mid-time (BJD)

2,454,975.2611

Angular separation (arcsec)

0.10900

Eq. Temperature

675K

(402 °C)

Insolation (S⊕)

44.87

Earth = 1.00

Earth Similarity (ESI)

0.357

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-800

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,315 K — cooler than the Sun (5,778 K)

Estimated Age

4.68 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.820 R☉

Stellar Mass

0.850 M☉

Metallicity [Fe/H]

-0.09

Extended Stellar Properties

Surface gravity (log g)

4.550 dex

Stellar density

1.016 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,019.26 parsec

Light-years 3,324.38 ly

V-band magnitude

15.92 mag

Voyager-speed travel 58,625,397 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.953 mas

Total Proper Motion

7.252 mas/yr

PM Right Ascension

-2.10 mas/yr

PM Declination

-6.94 mas/yr

Galactic Cartesian (pc)

x = 0.202 · y = -0.680 · z = 0.705

Equatorial (J2000)

RA 286.57477° · Dec 44.79519°

Galactic ℓ, b

75.394° · 16.281°

Ecliptic λ, β

300.489° · 66.489°

HTM-20 index

-1918589946