Key parameters at a glance

A radius of 2.56 Earth radii
A mass of 7.08 Earth masses
Surface gravity around 1.08 g
An orbital period of 16.561 days
Semi-major axis 0.1144 AU
Equilibrium temperature 701 K (428 °C)
Distance from Earth 2,941.62 light-years
Earth Similarity Index 0.358
Travel time at Voyager 1 speed 51,875,533 years

Kepler-837 b Planet Profile

Physical Specs

Radius

2.56 R⊕

Radius (Jupiter)

0.228 R♃

Mass

7.08 M⊕

Mass (Jupiter)

0.022 M♃

Density

2.32 g/cm³

Surface Gravity

1.08 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.358

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

#1092of 1978

top 55.2%

This planet

2.56R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-171 c 2.56 R⊕ Kepler-640 b 2.56 R⊕ Kepler-175 b 2.56 R⊕

Metric	Earth	Kepler-837 b	Jupiter
Radius (R⊕)	1.00	2.56	11.21
Mass (M⊕)	1.00	7.08	317.83
Density (g/cm³)	5.51	2.32	1.33
Surface Gravity (g)	1.00	1.08	2.53
Insolation (S⊕)	1.00	55.97	0.037

Star Catalogue Identifiers

TIC

TIC 164891482

Gaia DR2

Gaia DR2 2107265028783828736

Gaia DR3

Gaia DR3 2107265028783828736

System

Kepler-837

Percentile among Sub-Neptune cohort

Radius 2.560 R⊕ · percentile 44 / cohort 1978

Mass 7.080 M⊕ · percentile 41 / cohort 1978

Orbital period 16.56 d · percentile 55 / cohort 1946

Distance 901.91 pc · percentile 72 / cohort 1975

ESI 0.358 · percentile 43 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

16.561 days

Semi-major axis

0.1144 AU

Eccentricity

0.000

Inclination

86.99 °

Year Length

A year here lasts approximately 16.56 Earth days (4.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1144 AU.

Transit Fingerprint

Depth

0.070 %

Duration

2.261 h

Impact parameter b

0.970

Rp / R★

0.029022

Transit midpoint (BJD)

2,454,966.4975

Photometric dip

Transit produces a flux drop of 701 ppm lasting ≈ 2.26 h.

Extended Orbital Architecture

Planet / star radius ratio

0.029022

Semi-major axis / stellar radius

16.300

Impact parameter (b)

0.970

Transit mid-time (BJD)

2,454,966.4975

Angular separation (arcsec)

0.12700

Eq. Temperature

701K

(428 °C)

Insolation (S⊕)

55.97

Earth = 1.00

Earth Similarity (ESI)

0.358

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-837

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,403 K — cooler than the Sun (5,778 K)

Estimated Age

3.98 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.810 R☉

Stellar Mass

0.850 M☉

Metallicity [Fe/H]

-0.18

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

1.463 g/cm³

Metallicity ratio

[Fe/H]

Distance

901.91 parsec

Light-years 2,941.62 ly

V-band magnitude

15.58 mag

Voyager-speed travel 51,875,533 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.080 mas

Total Proper Motion

4.879 mas/yr

PM Right Ascension

3.18 mas/yr

PM Declination

-3.70 mas/yr

Galactic Cartesian (pc)

x = 0.183 · y = -0.671 · z = 0.719

Equatorial (J2000)

RA 285.24676° · Dec 45.95011°

Galactic ℓ, b

76.155° · 17.575°

Ecliptic λ, β

299.018° · 67.859°

HTM-20 index

-1520044714