Key parameters at a glance

A radius of 2.84 Earth radii
A mass of 8.45 Earth masses
Surface gravity around 1.05 g
An orbital period of 10.355 days
Semi-major axis 0.0895 AU
Equilibrium temperature 777 K (504 °C)
Distance from Earth 2,524.94 light-years
Earth Similarity Index 0.310
Travel time at Voyager 1 speed 44,527,371 years

Kepler-701 b Planet Profile

Physical Specs

Radius

2.84 R⊕

Radius (Jupiter)

0.253 R♃

Mass

8.45 M⊕

Mass (Jupiter)

0.027 M♃

Density

2.03 g/cm³

Surface Gravity

1.05 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.310

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

#694of 1978

top 35.0%

This planet

2.84R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-133 c 2.84 R⊕ Kepler-527 b 2.84 R⊕ Kepler-599 b 2.84 R⊕

Metric	Earth	Kepler-701 b	Jupiter
Radius (R⊕)	1.00	2.84	11.21
Mass (M⊕)	1.00	8.45	317.83
Density (g/cm³)	5.51	2.03	1.33
Surface Gravity (g)	1.00	1.05	2.53
Insolation (S⊕)	1.00	75.62	0.037

Star Catalogue Identifiers

TIC

TIC 121795464

Gaia DR2

Gaia DR2 2102228887573941760

Gaia DR3

Gaia DR3 2102228887573941760

System

Kepler-701

Percentile among Sub-Neptune cohort

Radius 2.840 R⊕ · percentile 65 / cohort 1978

Mass 8.450 M⊕ · percentile 59 / cohort 1978

Orbital period 10.36 d · percentile 36 / cohort 1946

Distance 774.15 pc · percentile 64 / cohort 1975

ESI 0.310 · percentile 31 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

10.355 days

Semi-major axis

0.0895 AU

Eccentricity

0.000

Inclination

89.93 °

Year Length

A year here lasts approximately 10.36 Earth days (2.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0895 AU.

Transit Fingerprint

Depth

0.075 %

Duration

3.428 h

Impact parameter b

0.029

Rp / R★

0.030775

Transit midpoint (BJD)

2,455,003.9369

Photometric dip

Transit produces a flux drop of 751 ppm lasting ≈ 3.43 h.

Extended Orbital Architecture

Planet / star radius ratio

0.030775

Semi-major axis / stellar radius

25.510

Impact parameter (b)

0.029

Transit mid-time (BJD)

2,455,003.9369

Angular separation (arcsec)

0.11600

Eq. Temperature

777K

(504 °C)

Insolation (S⊕)

75.62

Earth = 1.00

Earth Similarity (ESI)

0.310

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-701

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,343 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.840 R☉

Stellar Mass

0.880 M☉

Metallicity [Fe/H]

0.00

Extended Stellar Properties

Surface gravity (log g)

4.540 dex

Stellar density

2.928 g/cm³

Metallicity ratio

[Fe/H]

Distance

774.15 parsec

Light-years 2,524.94 ly

V-band magnitude

15.06 mag

Voyager-speed travel 44,527,371 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.263 mas

Total Proper Motion

7.203 mas/yr

PM Right Ascension

4.77 mas/yr

PM Declination

5.40 mas/yr

Galactic Cartesian (pc)

x = 0.243 · y = -0.707 · z = 0.664

Equatorial (J2000)

RA 288.99418° · Dec 41.63331°

Galactic ℓ, b

73.118° · 13.406°

Ecliptic λ, β

302.341° · 62.956°

HTM-20 index

-1515755872