Key parameters at a glance

A radius of 1.82 Earth radii
A mass of 3.97 Earth masses
Surface gravity around 1.20 g
An orbital period of 12.992 days
Semi-major axis 0.1115 AU
Equilibrium temperature 866 K (593 °C)
Distance from Earth 3,686.25 light-years
Earth Similarity Index 0.327
Travel time at Voyager 1 speed 65,006,975 years

Kepler-772 b Planet Profile

Physical Specs

Radius

1.82 R⊕

Radius (Jupiter)

0.162 R♃

Mass

3.97 M⊕

Mass (Jupiter)

0.013 M♃

Density

3.62 g/cm³

Surface Gravity

1.20 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.327

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

#235of 1176

top 19.9%

This planet

1.82R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-283 c 1.82 R⊕ Kepler-1262 b 1.82 R⊕ Kepler-113 b 1.82 R⊕

Metric	Earth	Kepler-772 b	Jupiter
Radius (R⊕)	1.00	1.82	11.21
Mass (M⊕)	1.00	3.97	317.83
Density (g/cm³)	5.51	3.62	1.33
Surface Gravity (g)	1.00	1.20	2.53
Insolation (S⊕)	1.00	264.58	0.037

Star Catalogue Identifiers

TIC

TIC 137150277

Gaia DR2

Gaia DR2 2052585044228107008

Gaia DR3

Gaia DR3 2052585044228107008

System

Kepler-772

Percentile among Super-Earth cohort

Radius 1.820 R⊕ · percentile 79 / cohort 1176

Mass 3.970 M⊕ · percentile 72 / cohort 1176

Orbital period 12.99 d · percentile 72 / cohort 1164

Distance 1,130.21 pc · percentile 87 / cohort 1171

ESI 0.327 · percentile 44 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

12.992 days

Semi-major axis

0.1115 AU

Eccentricity

0.000

Inclination

89.69 °

Year Length

A year here lasts approximately 12.99 Earth days (3.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1115 AU.

Transit Fingerprint

Depth

0.027 %

Duration

5.984 h

Impact parameter b

0.740

Rp / R★

0.014835

Transit midpoint (BJD)

2,454,969.3195

Photometric dip

Transit produces a flux drop of 271 ppm lasting ≈ 5.98 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014835

Semi-major axis / stellar radius

16.683

Impact parameter (b)

0.740

Transit mid-time (BJD)

2,454,969.3195

Angular separation (arcsec)

0.09870

Eq. Temperature

866K

(593 °C)

Insolation (S⊕)

264.58

Earth = 1.00

Earth Similarity (ESI)

0.327

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-772

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,714 K — cooler than the Sun (5,778 K)

Estimated Age

8.13 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.110 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

4.330 dex

Stellar density

0.200 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,130.21 parsec

Light-years 3,686.25 ly

V-band magnitude

14.15 mag

Voyager-speed travel 65,006,975 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.856 mas

Total Proper Motion

3.917 mas/yr

PM Right Ascension

0.24 mas/yr

PM Declination

-3.91 mas/yr

Galactic Cartesian (pc)

x = 0.287 · y = -0.731 · z = 0.619

Equatorial (J2000)

RA 291.42358° · Dec 38.21656°

Galactic ℓ, b

70.791° · 10.251°

Ecliptic λ, β

304.027° · 59.151°

HTM-20 index

2119060862