Key parameters at a glance

A radius of 2.01 Earth radii
A mass of 4.70 Earth masses
Surface gravity around 1.16 g
An orbital period of 14.560 days
Semi-major axis 0.1160 AU
Equilibrium temperature 758 K (485 °C)
Distance from Earth 5,773.84 light-years
Earth Similarity Index 0.362
Travel time at Voyager 1 speed 101,821,695 years

Kepler-754 b Planet Profile

Physical Specs

Radius

2.01 R⊕

Radius (Jupiter)

0.179 R♃

Mass

4.70 M⊕

Mass (Jupiter)

0.015 M♃

Density

3.18 g/cm³

Surface Gravity

1.16 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.362

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

#1940of 1978

top 98.0%

This planet

2.01R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-415 c 2.01 R⊕ Kepler-260 b 2.01 R⊕ Kepler-280 c 2.01 R⊕

Metric	Earth	Kepler-754 b	Jupiter
Radius (R⊕)	1.00	2.01	11.21
Mass (M⊕)	1.00	4.70	317.83
Density (g/cm³)	5.51	3.18	1.33
Surface Gravity (g)	1.00	1.16	2.53
Insolation (S⊕)	1.00	216.47	0.037

Star Catalogue Identifiers

TIC

TIC 138036531

Gaia DR2

Gaia DR2 2051669906960994304

Gaia DR3

Gaia DR3 2051669906960994304

System

Kepler-754

Percentile among Sub-Neptune cohort

Radius 2.010 R⊕ · percentile 1 / cohort 1978

Mass 4.700 M⊕ · percentile 3 / cohort 1978

Orbital period 14.56 d · percentile 50 / cohort 1946

Distance 1,770.27 pc · percentile 96 / cohort 1975

ESI 0.362 · percentile 43 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

14.560 days

Semi-major axis

0.1160 AU

Eccentricity

0.000

Inclination

89.93 °

Year Length

A year here lasts approximately 14.56 Earth days (4.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1160 AU.

Transit Fingerprint

Depth

0.029 %

Duration

5.760 h

Impact parameter b

0.895

Rp / R★

0.016698

Transit midpoint (BJD)

2,454,968.9618

Photometric dip

Transit produces a flux drop of 291 ppm lasting ≈ 5.76 h.

Extended Orbital Architecture

Planet / star radius ratio

0.016698

Semi-major axis / stellar radius

20.086

Impact parameter (b)

0.895

Transit mid-time (BJD)

2,454,968.9618

Angular separation (arcsec)

0.06550

Eq. Temperature

758K

(485 °C)

Insolation (S⊕)

216.47

Earth = 1.00

Earth Similarity (ESI)

0.362

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-754

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,935 K — hotter than the Sun (5,778 K)

Estimated Age

3.80 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.080 R☉

Stellar Mass

1.060 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

0.723 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,770.27 parsec

Light-years 5,773.84 ly

V-band magnitude

15.35 mag

Voyager-speed travel 101,821,695 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.537 mas

Total Proper Motion

5.753 mas/yr

PM Right Ascension

-0.68 mas/yr

PM Declination

-5.71 mas/yr

Galactic Cartesian (pc)

x = 0.312 · y = -0.726 · z = 0.614

Equatorial (J2000)

RA 293.25411° · Dec 37.84615°

Galactic ℓ, b

71.123° · 8.799°

Ecliptic λ, β

306.479° · 58.376°

HTM-20 index

1112993086