Key parameters at a glance

A radius of 1.22 Earth radii
A mass of 1.98 Earth masses
Surface gravity around 1.33 g
An orbital period of 1.197 days
Semi-major axis 0.0205 AU
Equilibrium temperature 1,414 K (1141 °C)
Distance from Earth 3,139.12 light-years
Earth Similarity Index 0.210
Travel time at Voyager 1 speed 55,358,339 years
Almost certainly tidally locked to its host star given the close orbit

2 siblings around Kepler-763

Kepler-763 b shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-763 b this	Rocky Terrestrial	1.22	1.98	1.197	1,414	2016
Kepler-763 c	Super-Earth	1.42	2.60	4.097	938	2023
Kepler-763 d	Super-Earth	1.67	3.43	6.503	804	2023

Kepler-763 b Planet Profile

Physical Specs

Radius

1.22 R⊕

Radius (Jupiter)

0.109 R♃

Mass

1.98 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.99 g/cm³

Surface Gravity

1.33 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.210

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

#35of 570

top 6.0%

This planet

1.22R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-295 b 1.22 R⊕ Kepler-226 d 1.22 R⊕ Kepler-197 d 1.22 R⊕

Metric	Earth	Kepler-763 b	Jupiter
Radius (R⊕)	1.00	1.22	11.21
Mass (M⊕)	1.00	1.98	317.83
Density (g/cm³)	5.51	5.99	1.33
Surface Gravity (g)	1.00	1.33	2.53
Insolation (S⊕)	1.00	974.09	0.037

Star Catalogue Identifiers

TIC

TIC 63130782

Gaia DR2

Gaia DR2 2128369501647063808

Gaia DR3

Gaia DR3 2128369501647063808

System

Kepler-763

Percentile among Rocky Terrestrial cohort

Radius 1.220 R⊕ · percentile 92 / cohort 570

Mass 1.980 M⊕ · percentile 83 / cohort 570

Orbital period 1.20 d · percentile 13 / cohort 567

Distance 962.46 pc · percentile 93 / cohort 566

ESI 0.210 · percentile 16 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

1.197 days

Semi-major axis

0.0205 AU

Eccentricity

0.000

Inclination

87.27 °

Year Length

A year here lasts approximately 1.20 Earth days (0.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0205 AU.

Transit Fingerprint

Depth

0.022 %

Duration

1.190 h

Impact parameter b

0.235

Rp / R★

0.014061

Transit midpoint (BJD)

2,454,965.5308

Photometric dip

Transit produces a flux drop of 225 ppm lasting ≈ 1.19 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014061

Semi-major axis / stellar radius

7.600

Impact parameter (b)

0.235

Transit mid-time (BJD)

2,454,965.5308

Angular separation (arcsec)

0.02130

Eq. Temperature

1,414K

(1141 °C)

Insolation (S⊕)

974.09

Earth = 1.00

Earth Similarity (ESI)

0.210

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. Close-orbiting tidally-locked around a cool host.

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-763

Spectral Class

K-type orange

Effective Temperature

5,166 K — cooler than the Sun (5,778 K)

Estimated Age

4.79 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.800 R☉

Stellar Mass

0.840 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.570 dex

Stellar density

3.303 g/cm³

Metallicity ratio

[Fe/H]

Distance

962.46 parsec

Light-years 3,139.12 ly

V-band magnitude

15.97 mag

Voyager-speed travel 55,358,339 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.011 mas

Total Proper Motion

9.264 mas/yr

PM Right Ascension

7.28 mas/yr

PM Declination

5.73 mas/yr

Galactic Cartesian (pc)

x = 0.256 · y = -0.630 · z = 0.733

Equatorial (J2000)

RA 292.14455° · Dec 47.15736°

Galactic ℓ, b

79.246° · 13.692°

Ecliptic λ, β

311.844° · 67.406°

HTM-20 index

-89822047