Key parameters at a glance

A radius of 2.03 Earth radii
A mass of 4.78 Earth masses
Surface gravity around 1.16 g
An orbital period of 10.128 days
Semi-major axis 0.0874 AU
Equilibrium temperature 767 K (494 °C)
Distance from Earth 2,709.40 light-years
Earth Similarity Index 0.357
Travel time at Voyager 1 speed 47,780,279 years

Kepler-761 b Planet Profile

Physical Specs

Radius

2.03 R⊕

Radius (Jupiter)

0.181 R♃

Mass

4.78 M⊕

Mass (Jupiter)

0.015 M♃

Density

3.14 g/cm³

Surface Gravity

1.16 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

#1915of 1978

top 96.8%

This planet

2.03R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

GJ 2030 b 2.03 R⊕ Kepler-37 d 2.03 R⊕ Kepler-195 b 2.03 R⊕

Metric	Earth	Kepler-761 b	Jupiter
Radius (R⊕)	1.00	2.03	11.21
Mass (M⊕)	1.00	4.78	317.83
Density (g/cm³)	5.51	3.14	1.33
Surface Gravity (g)	1.00	1.16	2.53
Insolation (S⊕)	1.00	95.45	0.037

Star Catalogue Identifiers

TIC

TIC 159442087

Gaia DR2

Gaia DR2 2126870661139070080

Gaia DR3

Gaia DR3 2126870661139070080

System

Kepler-761

Percentile among Sub-Neptune cohort

Radius 2.030 R⊕ · percentile 3 / cohort 1978

Mass 4.780 M⊕ · percentile 5 / cohort 1978

Orbital period 10.13 d · percentile 35 / cohort 1946

Distance 830.71 pc · percentile 67 / cohort 1975

ESI 0.357 · percentile 42 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

10.128 days

Semi-major axis

0.0874 AU

Eccentricity

0.000

Inclination

87.16 °

Year Length

A year here lasts approximately 10.13 Earth days (2.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0874 AU.

Transit Fingerprint

Depth

0.048 %

Duration

3.363 h

Impact parameter b

0.882

Rp / R★

0.020364

Transit midpoint (BJD)

2,454,972.1154

Photometric dip

Transit produces a flux drop of 477 ppm lasting ≈ 3.36 h.

Extended Orbital Architecture

Planet / star radius ratio

0.020364

Semi-major axis / stellar radius

23.390

Impact parameter (b)

0.882

Transit mid-time (BJD)

2,454,972.1154

Angular separation (arcsec)

0.10500

Eq. Temperature

767K

(494 °C)

Insolation (S⊕)

95.45

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-761

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,706 K — cooler than the Sun (5,778 K)

Estimated Age

4.07 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.930 R☉

Stellar Mass

0.950 M☉

Metallicity [Fe/H]

-0.09

Extended Stellar Properties

Surface gravity (log g)

4.480 dex

Stellar density

2.359 g/cm³

Metallicity ratio

[Fe/H]

Distance

830.71 parsec

Light-years 2,709.40 ly

V-band magnitude

14.99 mag

Voyager-speed travel 47,780,279 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.175 mas

Total Proper Motion

9.075 mas/yr

PM Right Ascension

3.59 mas/yr

PM Declination

8.33 mas/yr

Galactic Cartesian (pc)

x = 0.251 · y = -0.672 · z = 0.696

Equatorial (J2000)

RA 290.50360° · Dec 44.14362°

Galactic ℓ, b

75.938° · 13.451°

Ecliptic λ, β

306.500° · 65.006°

HTM-20 index

668178467