Key parameters at a glance

A radius of 1.78 Earth radii
A mass of 3.82 Earth masses
Surface gravity around 1.21 g
An orbital period of 7.193 days
Semi-major axis 0.0744 AU
Equilibrium temperature 995 K (722 °C)
Distance from Earth 5,418.36 light-years
Earth Similarity Index 0.284
Travel time at Voyager 1 speed 95,552,851 years

Kepler-850 b Planet Profile

Physical Specs

Radius

1.78 R⊕

Radius (Jupiter)

0.159 R♃

Mass

3.82 M⊕

Mass (Jupiter)

0.012 M♃

Density

3.72 g/cm³

Surface Gravity

1.21 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.284

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

#282of 1176

top 23.9%

This planet

1.78R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-1544 b 1.78 R⊕ Kepler-881 b 1.78 R⊕ GJ 676 A d 1.78 R⊕

Metric	Earth	Kepler-850 b	Jupiter
Radius (R⊕)	1.00	1.78	11.21
Mass (M⊕)	1.00	3.82	317.83
Density (g/cm³)	5.51	3.72	1.33
Surface Gravity (g)	1.00	1.21	2.53
Insolation (S⊕)	1.00	329.28	0.037

Star Catalogue Identifiers

TIC

TIC 26751527

Gaia DR2

Gaia DR2 2128927297638946176

Gaia DR3

Gaia DR3 2128927297638946176

System

Kepler-850

Percentile among Super-Earth cohort

Radius 1.780 R⊕ · percentile 75 / cohort 1176

Mass 3.820 M⊕ · percentile 69 / cohort 1176

Orbital period 7.19 d · percentile 54 / cohort 1164

Distance 1,661.28 pc · percentile 96 / cohort 1171

ESI 0.284 · percentile 32 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

7.193 days

Semi-major axis

0.0744 AU

Eccentricity

0.000

Inclination

89.94 °

Year Length

A year here lasts approximately 7.19 Earth days (2.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0744 AU.

Transit Fingerprint

Depth

0.026 %

Duration

3.435 h

Impact parameter b

0.029

Rp / R★

0.015282

Transit midpoint (BJD)

2,454,969.0517

Photometric dip

Transit produces a flux drop of 255 ppm lasting ≈ 3.44 h.

Extended Orbital Architecture

Planet / star radius ratio

0.015282

Semi-major axis / stellar radius

16.250

Impact parameter (b)

0.029

Transit mid-time (BJD)

2,454,969.0517

Angular separation (arcsec)

0.04480

Eq. Temperature

995K

(722 °C)

Insolation (S⊕)

329.28

Earth = 1.00

Earth Similarity (ESI)

0.284

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-850

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,932 K — hotter than the Sun (5,778 K)

Estimated Age

3.89 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.090 R☉

Stellar Mass

1.060 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

1.605 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,661.28 parsec

Light-years 5,418.36 ly

V-band magnitude

15.61 mag

Voyager-speed travel 95,552,851 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.573 mas

Total Proper Motion

10.218 mas/yr

PM Right Ascension

-1.54 mas/yr

PM Declination

-10.10 mas/yr

Galactic Cartesian (pc)

x = 0.259 · y = -0.609 · z = 0.750

Equatorial (J2000)

RA 293.08445° · Dec 48.57536°

Galactic ℓ, b

80.843° · 13.732°

Ecliptic λ, β

314.914° · 68.444°

HTM-20 index

-783593081