Key parameters at a glance

A radius of 5.99 Earth radii
A mass of 30.00 Earth masses
Surface gravity around 0.84 g
An orbital period of 80.872 days
Semi-major axis 0.3577 AU
Equilibrium temperature 452 K (179 °C)
Distance from Earth 4,865.46 light-years
Earth Similarity Index 0.372
Travel time at Voyager 1 speed 85,802,466 years

Kepler-700 b Planet Profile

Physical Specs

Radius

5.99 R⊕

Radius (Jupiter)

0.534 R♃

Mass

30.00 M⊕

Mass (Jupiter)

0.094 M♃

Density

0.77 g/cm³

Surface Gravity

0.84 g (Earth)

Classification

Planet Type

Neptune-like

ESI Score 0.372

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

#284of 574

top 49.3%

This planet

5.99R⊕

Neptune-like median

6.39R⊕

Nearest-size peers

MOA-2011-BLG-028L b 5.99 R⊕ TOI-2719 b 5.98 R⊕ KMT-2019-BLG-1216L b 5.98 R⊕

Metric	Earth	Kepler-700 b	Jupiter
Radius (R⊕)	1.00	5.99	11.21
Mass (M⊕)	1.00	30.00	317.83
Density (g/cm³)	5.51	0.77	1.33
Surface Gravity (g)	1.00	0.84	2.53
Insolation (S⊕)	1.00	12.07	0.037

Star Catalogue Identifiers

TIC

TIC 121114997

Gaia DR2

Gaia DR2 2102411578301719808

Gaia DR3

Gaia DR3 2102411578301719808

System

Kepler-700

Percentile among Neptune-like cohort

Radius 5.990 R⊕ · percentile 50 / cohort 574

Mass 30.000 M⊕ · percentile 50 / cohort 574

Orbital period 80.87 d · percentile 78 / cohort 524

Distance 1,491.76 pc · percentile 84 / cohort 572

ESI 0.372 · percentile 68 / cohort 574

Orbit & Habitability

Orbital Dynamics

Period

80.872 days

Semi-major axis

0.3577 AU

Eccentricity

0.000

Inclination

89.40 °

Year Length

A year here lasts approximately 80.87 Earth days (22.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3577 AU.

Transit Fingerprint

Depth

0.360 %

Duration

11.114 h

Impact parameter b

0.632

Rp / R★

0.056730

Transit midpoint (BJD)

2,455,036.8970

Photometric dip

Transit produces a flux drop of 3,605 ppm lasting ≈ 11.11 h.

Extended Orbital Architecture

Planet / star radius ratio

0.056730

Semi-major axis / stellar radius

45.900

Impact parameter (b)

0.632

Transit mid-time (BJD)

2,455,036.8970

Angular separation (arcsec)

0.24000

Eq. Temperature

452K

(179 °C)

Insolation (S⊕)

12.07

Earth = 1.00

Earth Similarity (ESI)

0.372

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-700

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,692 K — cooler than the Sun (5,778 K)

Estimated Age

4.37 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.960 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.470 dex

Stellar density

0.373 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,491.76 parsec

Light-years 4,865.46 ly

V-band magnitude

15.20 mag

Voyager-speed travel 85,802,466 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.642 mas

Total Proper Motion

8.519 mas/yr

PM Right Ascension

-7.80 mas/yr

PM Declination

-3.43 mas/yr

Galactic Cartesian (pc)

x = 0.221 · y = -0.715 · z = 0.663

Equatorial (J2000)

RA 287.15422° · Dec 41.56578°

Galactic ℓ, b

72.478° · 14.636°

Ecliptic λ, β

299.373° · 63.266°

HTM-20 index

-1151520545