Key parameters at a glance

A radius of 1.19 Earth radii
A mass of 1.81 Earth masses
Surface gravity around 1.28 g
An orbital period of 0.975 days
Semi-major axis 0.0183 AU
Equilibrium temperature 1,612 K (1339 °C)
Distance from Earth 1,300.31 light-years
Earth Similarity Index 0.182
Travel time at Voyager 1 speed 22,930,890 years

Kepler-775 b Planet Profile

Physical Specs

Radius

1.19 R⊕

Radius (Jupiter)

0.106 R♃

Mass

1.81 M⊕

Mass (Jupiter)

0.006 M♃

Density

5.90 g/cm³

Surface Gravity

1.28 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.182

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

#101of 570

top 17.5%

This planet

1.19R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

KOI-351 c 1.19 R⊕ Kepler-953 c 1.19 R⊕ Kepler-310 b 1.19 R⊕

Metric	Earth	Kepler-775 b	Jupiter
Radius (R⊕)	1.00	1.19	11.21
Mass (M⊕)	1.00	1.81	317.83
Density (g/cm³)	5.51	5.90	1.33
Surface Gravity (g)	1.00	1.28	2.53
Insolation (S⊕)	1.00	1,496.75	0.037

Star Catalogue Identifiers

TIC

TIC 137211068

Gaia DR2

Gaia DR2 2101711155037463040

Gaia DR3

Gaia DR3 2101711155037463040

System

Kepler-775

Percentile among Rocky Terrestrial cohort

Radius 1.190 R⊕ · percentile 80 / cohort 570

Mass 1.810 M⊕ · percentile 74 / cohort 570

Orbital period 0.97 d · percentile 11 / cohort 567

Distance 398.68 pc · percentile 52 / cohort 566

ESI 0.182 · percentile 10 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

0.975 days

Semi-major axis

0.0183 AU

Eccentricity

0.000

Inclination

88.53 °

Year Length

A year here lasts roughly 23.4 hours long on a nearly circular orbit at a mean orbital distance of 0.0183 AU.

Transit Fingerprint

Depth

0.020 %

Duration

1.598 h

Impact parameter b

0.820

Rp / R★

0.013083

Transit midpoint (BJD)

2,454,966.0762

Photometric dip

Transit produces a flux drop of 198 ppm lasting ≈ 1.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013083

Semi-major axis / stellar radius

4.664

Impact parameter (b)

0.820

Transit mid-time (BJD)

2,454,966.0762

Angular separation (arcsec)

0.04600

Eq. Temperature

1,612K

(1339 °C)

Insolation (S⊕)

1,496.75

Earth = 1.00

Earth Similarity (ESI)

0.182

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-775

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,468 K — cooler than the Sun (5,778 K)

Estimated Age

1.86 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.840 R☉

Stellar Mass

0.920 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

1.500 g/cm³

Metallicity ratio

[Fe/H]

Distance

398.68 parsec

Light-years 1,300.31 ly

V-band magnitude

13.56 mag

Voyager-speed travel 22,930,890 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

2.479 mas

Total Proper Motion

25.949 mas/yr

PM Right Ascension

-4.87 mas/yr

PM Declination

-25.49 mas/yr

Galactic Cartesian (pc)

x = 0.273 · y = -0.695 · z = 0.665

Equatorial (J2000)

RA 291.43328° · Dec 41.70332°

Galactic ℓ, b

73.980° · 11.788°

Ecliptic λ, β

306.179° · 62.476°

HTM-20 index

-311566027