Key parameters at a glance

A radius of 1.43 Earth radii
A mass of 2.63 Earth masses
Surface gravity around 1.29 g
An orbital period of 3.749 days
Semi-major axis 0.0468 AU
Equilibrium temperature 1,160 K (887 °C)
Distance from Earth 1,784.16 light-years
Earth Similarity Index 0.257
Travel time at Voyager 1 speed 31,463,627 years

Kepler-773 b Planet Profile

Physical Specs

Radius

1.43 R⊕

Radius (Jupiter)

0.128 R♃

Mass

2.63 M⊕

Mass (Jupiter)

0.008 M♃

Density

4.94 g/cm³

Surface Gravity

1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.257

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

#864of 1176

top 73.4%

This planet

1.43R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-334 c 1.43 R⊕ Kepler-399 c 1.43 R⊕ Kepler-311 c 1.43 R⊕

Metric	Earth	Kepler-773 b	Jupiter
Radius (R⊕)	1.00	1.43	11.21
Mass (M⊕)	1.00	2.63	317.83
Density (g/cm³)	5.51	4.94	1.33
Surface Gravity (g)	1.00	1.29	2.53
Insolation (S⊕)	1.00	490.71	0.037

Star Catalogue Identifiers

TIC

TIC 122682991

Gaia DR2

Gaia DR2 2052603289249806976

Gaia DR3

Gaia DR3 2052603289249806976

System

Kepler-773

Percentile among Super-Earth cohort

Radius 1.430 R⊕ · percentile 25 / cohort 1176

Mass 2.630 M⊕ · percentile 24 / cohort 1176

Orbital period 3.75 d · percentile 29 / cohort 1164

Distance 547.03 pc · percentile 50 / cohort 1171

ESI 0.257 · percentile 25 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

3.749 days

Semi-major axis

0.0468 AU

Eccentricity

0.000

Inclination

80.24 °

Year Length

A year here lasts approximately 3.75 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0468 AU.

Transit Fingerprint

Depth

0.018 %

Duration

1.844 h

Impact parameter b

0.120

Rp / R★

0.012503

Transit midpoint (BJD)

2,454,968.1092

Photometric dip

Transit produces a flux drop of 183 ppm lasting ≈ 1.84 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012503

Semi-major axis / stellar radius

15.630

Impact parameter (b)

0.120

Transit mid-time (BJD)

2,454,968.1092

Angular separation (arcsec)

0.08560

Eq. Temperature

1,160K

(887 °C)

Insolation (S⊕)

490.71

Earth = 1.00

Earth Similarity (ESI)

0.257

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

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-773

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,850 K — hotter than the Sun (5,778 K)

Estimated Age

2.82 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.010 R☉

Stellar Mass

1.040 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

4.450 dex

Stellar density

0.870 g/cm³

Metallicity ratio

[Fe/H]

Distance

547.03 parsec

Light-years 1,784.16 ly

V-band magnitude

13.39 mag

Voyager-speed travel 31,463,627 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

1.799 mas

Total Proper Motion

9.719 mas/yr

PM Right Ascension

-8.46 mas/yr

PM Declination

-4.79 mas/yr

Galactic Cartesian (pc)

x = 0.281 · y = -0.736 · z = 0.616

Equatorial (J2000)

RA 290.88462° · Dec 38.05755°

Galactic ℓ, b

70.455° · 10.560°

Ecliptic λ, β

303.147° · 59.117°

HTM-20 index

1778504666